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Sample records for francisco romero aguirre

  1. [The teaching of Dr. Francisco Romero Aguirre].

    PubMed

    Pérez Albacete, Mariano; Romero Fernández, Francisco

    2007-10-01

    After the death of Professor Francisco Romero Aguirre (Zaragoza 6/7/1918-6/28/2006) we want to make known his great teaching vocation, so that we covered his link with University from the start of his studies to his professorship as first professor in urology in the Spanish University (1961), and his work at the chairmanship of the Professional Postgraduate School of Urology in the University of Zaragoza. We reviewed his biography, his edited works and publications of the Urology Chair at the University of Zaragoza, and obtained as many references as we found about his teaching activity. From the start of his academic training he kept a constant union with University and cooperated in all disciplines he had relation with before he got the responsibility of teaching urology. His university spirit and great formation had the chairman of surgical pathology see the convenience of separating urology from the common trunk of surgery, a proposal that, being accepted by the staff meeting of the Faculty of Medicine of Zaragoza and submitted to the Ministry resulted in the designation of urology as an independent subject in the degree of medicine. His labour as responsible was marked by work and continuous achievements in his classes, many publications, doctorate and urological monographic courses carried out, thesis and memories directed, all of which enabled him to create to the Professional Urological Specialization School, the culmination of more than 40 years dedicated to teaching in the university. We find Prof. Romero's life completely dedicated to University and teaching. His wide urological and propedeutical formation made him a person who joined the necessary conditions and abilities to take the responsibility and carry out a satisfactory performance as responsible of teaching urology in the school of medicine of Zaragoza, a subject which thanks to his virtue and good performance was for the first time elevated to the level of independent subject.

  2. Of Comedy and Tragedy: A Commentary on Adalberto Aguirre

    ERIC Educational Resources Information Center

    Limon, Jose E.

    2005-01-01

    Jos Limn maintains that Professor Aguirres account may be construed as fundamentally a story of California, albeit one told from a Chicano perspective. It is based less on any red-blooded forms of racism and more on the Roycean, Protestant, individualistic, comedic Anglo California that, in its relentless optimisms and perpetual newness, simply…

  3. When the Leader Leaves: Sustaining Success at Romero High School

    ERIC Educational Resources Information Center

    Johnson, Lauri; Sillman, Kathryn

    2012-01-01

    This case study asks readers to consider what leadership actions might help to sustain success for immigrant students in a small urban high school when the leader leaves. Principal Michael Perez, the founding principal of Romero High School, has been recruited to become the superintendent of a first-ring suburban district with rapidly changing…

  4. When the Leader Leaves: Sustaining Success at Romero High School

    ERIC Educational Resources Information Center

    Johnson, Lauri; Sillman, Kathryn

    2012-01-01

    This case study asks readers to consider what leadership actions might help to sustain success for immigrant students in a small urban high school when the leader leaves. Principal Michael Perez, the founding principal of Romero High School, has been recruited to become the superintendent of a first-ring suburban district with rapidly changing…

  5. Personal Stories, Voice and Presence in Academe: A Dialogical Response to Aguirre

    ERIC Educational Resources Information Center

    Padilla, Raymond V.; Martinez, Ruben O.

    2005-01-01

    Using the dialogical method, the discussants provide a critical examination of the issues raised by Aguirre. The dialogue centers on Chicana/os Studies as the vehicle that provided both entry into and context within the academy for Chicana/os joining the faculty in higher education during the second half of the twentieth century. Using El Plan de…

  6. Risk, Prophecy, Truth and Inspiration: A Picture of Archbishop Romero in the Education System of El Salvador

    ERIC Educational Resources Information Center

    Hopper, Joanne M.

    2014-01-01

    Born in El Salvador, at the heart of the Americas, Archbishop Oscar Romero came to have a profound impact, both nationally and internationally. Speaking out fearlessly against injustice and oppression, Archbishop Romero's poignant and powerful homilies were heard throughout the world and made him one of the greatest prophets. In the 30-year period…

  7. Are Formative Indicators Superfluous? An Extension of Aguirre-Urreta, Rönkkö, and Marakas Analysis

    ERIC Educational Resources Information Center

    Guyon, Hervé; Tensaout, Mouloud

    2016-01-01

    In this article, the authors extend the results of Aguirre-Urreta, Rönkkö, and Marakas (2016) concerning the omission of a relevant causal indicator by testing the validity of the assumption that causal indicators are entirely superfluous to the measurement model and discuss the implications for measurement theory. Contrary to common wisdom…

  8. Are Formative Indicators Superfluous? An Extension of Aguirre-Urreta, Rönkkö, and Marakas Analysis

    ERIC Educational Resources Information Center

    Guyon, Hervé; Tensaout, Mouloud

    2016-01-01

    In this article, the authors extend the results of Aguirre-Urreta, Rönkkö, and Marakas (2016) concerning the omission of a relevant causal indicator by testing the validity of the assumption that causal indicators are entirely superfluous to the measurement model and discuss the implications for measurement theory. Contrary to common wisdom…

  9. Passive airborne EM and ground IP\\resistivity results over the Romero intermediate sulphidation epithermal gold deposits, Dominican Republic

    NASA Astrophysics Data System (ADS)

    Legault, Jean M.; Niemi, Jeremy; Brett, Jeremy S. Zhao, Shengkai; Han, Zihao; Plastow, Geoffrey C.

    2016-04-01

    The Romero gold-copper-zinc-silver deposits are located in the Province of San Juan, Dominican Republic, ~165 km west-north-west of Santo Domingo. Romero and Romero South orebodies contain stratabound gold mineralisation with copper, silver and zinc of intermediate sulphidation (IS), epithermal style. The gold mineralisation is associated with disseminated to semi-massive sulphides, sulphide veinlets and quartz-sulphide veins within quartz-pyrite, quartz-illite-pyrite and illite-chlorite-pyrite alteration. Ground direct current (DC) resistivity and induced polarisation (IP) supported by ground magnetics remain the preferred geophysical targeting tools for drill follow-up along with geologic mapping and geochemistry. However, Z-axis tipper electromagnetics (ZTEM) passive airborne electromagnetics (AEM) and magnetics have recently also been applied with success for reconnaissance mapping of deep alteration and fault structures regionally. The airborne ZTEM-magnetic surveys, supported by three-dimensional (3D) inversions, show good correlation with the ground IP\\resistivity surveys in the Romero and Romero South gold-copper-zinc-silver IS deposit area. The results have provided targets for ground follow-up and deep targeted drilling, and were successful in identifying a previously unknown deep (>500 m) continuity between the Romero and Romero South deposits.

  10. Pathogenesis of XJ and Romero strains of Junin virus in two strains of guinea pigs.

    PubMed

    Yun, Nadezhda E; Linde, Nathaniel S; Dziuba, Natallia; Zacks, Michele A; Smith, Jeanon N; Smith, Jennifer K; Aronson, Judy F; Chumakova, Olga V; Lander, Heather M; Peters, Clarence J; Paessler, Slobodan

    2008-08-01

    Argentine hemorrhagic fever (AHF), a systemic infectious disease caused by infection with Junin virus, affects several organs, and patients can show hematologic, cardiovascular, renal, or neurologic symptoms. We compared the virulence of two Junin virus strains in inbred and outbred guinea pigs with the aim of characterizing this animal model better for future vaccine/antiviral efficacy studies. Our data indicate that this passage of the XJ strain is attenuated in guinea pigs. In contrast, the Romero strain is highly virulent in Strain 13 as well as in Hartley guinea pigs, resulting in systemic infection, thrombocytopenia, elevated aspartate aminotransferase levels, and ultimately, uniformly lethal disease. We detected viral antigen in formalin-fixed, paraffin-embedded tissues. Thus, both guinea pig strains are useful animal models for lethal Junin virus (Romero strain) infection and potentially can be used for preclinical trials in vaccine or antiviral drug development.

  11. Pathogenesis of XJ and Romero Strains of Junin Virus in Two Strains of Guinea Pigs

    PubMed Central

    Yun, Nadezhda E.; Linde, Nathaniel S.; Dziuba, Natallia; Zacks, Michele A.; Smith, Jeanon N.; Smith, Jennifer K.; Aronson, Judy F.; Chumakova, Olga V.; Lander, Heather M.; Peters, Clarence J.; Paessler, Slobodan

    2008-01-01

    Argentine hemorrhagic fever (AHF), a systemic infectious disease caused by infection with Junin virus, affects several organs, and patients can show hematologic, cardiovascular, renal, or neurologic symptoms. We compared the virulence of two Junin virus strains in inbred and outbred guinea pigs with the aim of characterizing this animal model better for future vaccine/antiviral efficacy studies. Our data indicate that this passage of the XJ strain is attenuated in guinea pigs. In contrast, the Romero strain is highly virulent in Strain 13 as well as in Hartley guinea pigs, resulting in systemic infection, thrombocytopenia, elevated apartate aminotransferase levels, and ultimately, uniformly lethal disease. We detected viral antigen in formalin-fixed, paraffin-embedded tissues. Thus, both guinea pig strains are useful animal models for lethal Junin virus (Romero strain) infection and potentially can be used for preclinical trials in vaccine or antiviral drug development. PMID:18689636

  12. California: San Francisco Bay

    Atmospheric Science Data Center

    2014-05-15

    article title:  Northern California and San Francisco Bay     ... 17, 2000 (MISR) and August 25, 1997 (AirMISR) - Northern California and the San Francisco Bay. project:  MISR ... date:  Aug 17, 2000 Images:  California San Francisco Bay location:  United States ...

  13. Geohydrology of the Aguirre and Pozo Hondo areas, southern Puerto Rico

    USGS Publications Warehouse

    Graves, R.P.

    1992-01-01

    The subsurface geology of the Aguirre and Pozo Hondo areas in southern Puerto Rico is primarily a fractured igneous volcanic rock (andesite) with three distinct zones: regolith, transition zone, and bedrock. Alluvial deposits are present, locally in each area, as well as weathered low- grade metamorphosed volcanics with a schistose texture and a vertical plane of foliation. A thin, water-table aquifer exists in the study areas. Ground water in this aquifer occurs primarily in the regolith and transition zone. The depth to the water table ranges from less than 1 foot to 75 feet below land surface. Ground- water flow out of the study areas is to the south into the southern coastal plain. The results of 2 multiple-well aquifer tests and 21 single-well slug injection and removal tests indicate that transmissivities range from 175 to 5,700 feet squared per day; hydraulic conductivities, from 0.02 to 160 feet per day; and storage coefficients from 0.02 to 0.2. The ground water in the study areas is of the calcium carbonate type. With the exception of dissolved solids, which were as much as 1,110 milligrams per liter, concentrations of common constituents in ground water did not exceed the U.S. Environmental Protection Agency's drinking water criteria.

  14. Taking levels of analysis in humor more seriously: comment on Romero and Arendt.

    PubMed

    Sosik, John J

    2012-04-01

    Humor is a phenomenon that can simultaneously coexist at the individual, dyadic, and group levels, making its measurement and conceptualization complex. In a recent field study, Romero and Arendt (2011) examined relationships between four humor styles (i.e., affiliative, self-enhancing, aggressive, self-defeating) and four outcomes (i.e., stress, satisfaction with co-workers, team cooperation, organizational commitment), however, the latter was apparently measured as a self-report at the individual level of analysis. Their interesting results indicated different humor styles can have either positive or negative effects on these outcome variables. However, if their operational definition--and hence their conceptualization--of humor is based on self-report by the initiator, it may be problematic to use it at the dyadic and group levels because it potentially mixes levels of analysis and may cause misalignment between data and theory. Cautions and implications for future research are discussed.

  15. Edward A. Delgado-Romero: Award for Distinguished Early Career Contributions to Psychology in the Public Interest.

    PubMed

    2011-11-01

    Presents Edward A. Delgado-Romero, the 2011 winner of the American Psychological Association Award for Distinguished Early Career Contributions to Psychology in the Public Interest. "Societies, professions, and individual citizens are enriched by the contributions of those who care. Edward A. Delgado-Romero has demonstrated through his scholarship, leadership in psychological associations such as the National Latina/Latino Psychological Association, and collaborations with universities and school districts in Georgia that he cares and is committed to addressing challenges in the provision of culturally sensitive psychological services to benefit the public interest. His example of servant leadership leaves a legacy to other early career professionals and graduate students alike. Es un hijo honorado." (PsycINFO Database Record (c) 2011 APA, all rights reserved). 2011 APA, all rights reserved

  16. Manuel francisco allende

    PubMed

    Thivolet

    2000-06-01

    It was on the occasion of my first visit to San Francisco that I got to know Manuel Frank Allende. He was born in Uruguay in 1918 but spent time in Paris where he worked as a hospital registrar shortly before the war. In 1940, he saw the occupation of France by the Germans. He passed over the Spanish border, was briefly interned and then set off back to the United States. He had a brief "stay" at Ellis Island opposite Manhattan, before obtaining a resident's permit enabling him to continue his speciality, dermatology. He then left for California, his wife, Katharine's home state. Manuel Frank was very open-minded, benefiting from the Spanish, French and American cultures, a "man of the world" before the term had been invented. We soon got on well, he liked skiing, which he had practised in Alpe d'Huez before the war. I visited him in San Francisco where he lived in a house dominating the Bay near the Golden Gate. He drew and painted the wonderful view he had from his windows. He died suddenly on the slopes in the Rocky Mountains. Katharine still lives in San Francisco where she has long been a member of the governing body of the French hospital. Manuel Frank left a marvellous collection of drawings which illustrate well the kind of man he was.

  17. Literary Crossover in the Domingo Del Monte "Tertulia": Anselmo Suárez Y Romero's and Cirilo Villaverde's C. Valdés Protagonists

    ERIC Educational Resources Information Center

    Myers, Megan Jeanette

    2017-01-01

    This article charts the similarities between the first short story appearance in 1839 of what later became Cirilo Villaverde's well-known nineteenth-century novel, "Cecilia Valdés" (1882), and Anselmo Suárez y Romero's "Carlota Valdés" (1838). The study considers the circle of influence in Cuba for writers during this time…

  18. Jean Parker School, San Francisco.

    ERIC Educational Resources Information Center

    Larson, Soren

    1999-01-01

    Describes the post-earthquake renovation of a San Francisco urban elementary school that preserved its historical detail within a modern replacement. Design features are detailed; photos and a floorplan are included. (GR)

  19. Overview of buildings with San Francisco skyline in background, looking ...

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

    Overview of buildings with San Francisco skyline in background, looking 84 degrees east - Presidio of San Francisco, Enlisted Men's Barracks Type, West end of Crissy Field, between Pearce & Maudlin Streets, San Francisco, San Francisco County, CA

  20. 408. Delineator Unknown September 19, 1933 SAN FRANCISCO OAKLAND ...

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

    408. Delineator Unknown September 19, 1933 SAN FRANCISCO - OAKLAND BAY BRIDGE; STUDY FOR SAN FRANCISCO ANCHORAGE; TIMOTHY L. PFLUEGER, ARTHUR BROWN JR., JOHN J. DONOVAN; BOARD OF CONSULTING ARCHITECTS; SHEET NO. 26 - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  1. 75 FR 39166 - Safety Zone; San Francisco Giants Baseball Game Promotion, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... Promotion, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast... Bay off San Francisco, CA in support of the San Francisco Giants Baseball Game Promotion. This safety... Giants will sponsor the San Francisco Giants Baseball Game Promotion on July 16, 2010, on the...

  2. 78 FR 18238 - Safety Zone; SFPD Training Safety Zone; San Francisco Bay, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-26

    ... Hunters Point in San Francisco, CA in support of the San Francisco Police Department's maritime... of Homeland Security FR Federal Register SFPD San Francisco Police Department NPRM Notice of Proposed....C sections 1221 et seq.). San Francisco Police Department will host the SFPD Training Safety Zone...

  3. 78 FR 20792 - Safety Zone; San Francisco Giants Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-08

    ... SECURITY Coast Guard 33 CFR Part 165 Safety Zone; San Francisco Giants Fireworks Display, San Francisco, CA... enforce the safety zone for the San Francisco Giants Fireworks Display in the Captain of the Port, San... (NAD83) for the San Francisco Giants Fireworks Display in 33 CFR 165.1191, Table 1, Item number 1. Under...

  4. 77 FR 28771 - Safety Zone; San Francisco Giants Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-16

    ... SECURITY Coast Guard 33 CFR Part 165 Safety Zone; San Francisco Giants Fireworks Display, San Francisco, CA... enforce the safety zone for the San Francisco Giants Fireworks Display in the Captain of the Port, San... 46'39.9'' N, 122 23'06.78'' W (NAD83) for the San Francisco Giants Fireworks Display in 33 CFR 165...

  5. Chinatown Chinese: The San Francisco Dialect.

    ERIC Educational Resources Information Center

    Dong, Lorraine; Hom, Marlon K.

    1980-01-01

    Discusses factors that make the language spoken in San Francisco's Chinatown so dynamic and, at times, inconsistent. Provides a glossary that includes transliterated and partially transliterated terms, translated terms, new terms, and special San Francisco terms. (Author/GC)

  6. San Francisco Bay Water Quality Improvement Fund

    EPA Pesticide Factsheets

    EPAs grant program to protect and restore San Francisco Bay. The San Francisco Bay Water Quality Improvement Fund (SFBWQIF) has invested in 58 projects along with 70 partners contributing to restore wetlands, water quality, and reduce polluted runoff.,

  7. Rescue from Cloned cDNAs and In Vivo Characterization of Recombinant Pathogenic Romero and Live-Attenuated Candid #1 Strains of Junin Virus, the Causative Agent of Argentine Hemorrhagic Fever Disease ▿

    PubMed Central

    Emonet, Sebastien F.; Seregin, Alexey V.; Yun, Nadezhda E.; Poussard, Allison L.; Walker, Aida G.; de la Torre, Juan C.; Paessler, Slobodan

    2011-01-01

    The New World arenavirus Junin virus (JUNV) is the causative agent of Argentine hemorrhagic fever (AHF), which is associated with high morbidity and significant mortality. Several pathogenic strains of JUNV have been documented, and a highly attenuated vaccine strain (Candid #1) was generated and used to vaccinate the human population at risk. The identification and functional characterization of viral genetic determinants associated with AHF and Candid #1 attenuation would contribute to the elucidation of the mechanisms contributing to AHF and the development of better vaccines and therapeutics. To this end, we used reverse genetics to rescue the pathogenic Romero and the attenuated Candid #1 strains of JUNV from cloned cDNAs. Both recombinant Candid #1 (rCandid #1) and Romero (rRomero) had the same growth properties and phenotypic features in cultured cells and in vivo as their corresponding parental viruses. Infection with rRomero caused 100% lethality in guinea pigs, whereas rCandid #1 infection was asymptomatic and provided protection against a lethal challenge with Romero. Notably, Romero and Candid #1 trans-acting proteins, L and NP, required for virus RNA replication and gene expression were exchangeable in a minigenome rescue assay. These findings support the feasibility of studies aimed at determining the contribution of each viral gene to JUNV pathogenesis and attenuation. In addition, we rescued Candid #1 viruses with three segments that efficiently expressed foreign genes introduced into their genomes. This finding opens the way for the development of a safe multivalent arenavirus vaccine. PMID:21123388

  8. Seeking Justice in San Francisco

    ERIC Educational Resources Information Center

    Pascopella, Angela

    2010-01-01

    This article discusses the life of Carlos A. Garcia, superintendent at the San Francisco Unified School District. Garcia was born in Chicago, but his parents shortly thereafter moved back to their homeland of Mexico for a few years. When Garcia was almost 5, his family moved to Los Angeles, where his parents worked in factories and Garcia was…

  9. California, San Francisco Bay area

    NASA Technical Reports Server (NTRS)

    1981-01-01

    The San Francisco Bay area (37.5N, 122.0W) of California from the Santa Cruz in the south to Point Reyes in the north with the rich agriculture region of the central San Joaquin Valley in the foreground.

  10. California, San Francisco Bay area

    NASA Image and Video Library

    1981-04-14

    STS001-12-305 (12-14 April 1981) --- California, San Francisco Bay photographed by a crew member on the space shuttle Columbia (STS-1). The coast is seen from near Santa Cruz northward to Point Reyes. The great valley is in the foreground. Photo credit: NASA

  11. Seeking Justice in San Francisco

    ERIC Educational Resources Information Center

    Pascopella, Angela

    2010-01-01

    This article discusses the life of Carlos A. Garcia, superintendent at the San Francisco Unified School District. Garcia was born in Chicago, but his parents shortly thereafter moved back to their homeland of Mexico for a few years. When Garcia was almost 5, his family moved to Los Angeles, where his parents worked in factories and Garcia was…

  12. 112. Dennis Hill, Photographer January 1998 VIEW OF SAN FRANCISCO ...

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

    112. Dennis Hill, Photographer January 1998 VIEW OF SAN FRANCISCO VIADUCT (RIGHT), UPPER DECK OFF-RAMP (LEFT), AND LOWER DECK ON-RAMP FROM TRANSBAY TERMINAL BUS LOOP, FACING NORTHEAST. - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  13. 10. Office of the Post Engineer, Presidio of San Francisco. ...

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

    10. Office of the Post Engineer, Presidio of San Francisco. Location of Water Lines, Presidio of San Francisco. Sheet 30. November 1943. SHOWING EASTERN PORTION OF CRISSY FIELD AND AREA A. - Presidio of San Francisco, Storehouse & Administration, Crissy Field North cantonment, Allen Street, San Francisco, San Francisco County, CA

  14. 9. Office of the Post Engineer, Presidio of San Francisco. ...

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

    9. Office of the Post Engineer, Presidio of San Francisco. Location of Water Lines, Presidio of San Francisco. Sheet 29. June 1944. SHOWING EASTERN PORTION OF CRISSY FIELD. - Presidio of San Francisco, Storehouse & Administration, Crissy Field North cantonment, Allen Street, San Francisco, San Francisco County, CA

  15. 36. Post Engineer Office, Presidio of San Francisco. Plot Plan, ...

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

    36. Post Engineer Office, Presidio of San Francisco. Plot Plan, Letterman Army Hospital, San Francisco, Calif. 1958. SHOWING LOCATION OF BUILDINGS 1006 AND 1049 IN LETTERMAN HOSPITAL COMPLEX IN 1958. - Presidio of San Francisco, Letterman General Hospital, Building No. 27, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

  16. ASTER Flyby of San Francisco

    NASA Technical Reports Server (NTRS)

    2002-01-01

    The Advanced Spaceborne Thermal Emission and Reflection radiometer, ASTER, is an international project: the instrument was supplied by Japan's Ministry of International Trade and Industry. A joint US/Japan science team developed algorithms for science data products, and is validating instrument performance. With its 14 spectral bands, extremely high spatial resolution, and 15 meter along-track stereo capability, ASTER is the zoom lens of the Terra satellite. The primary mission goals are to characterize the Earth's surface; and to monitor dynamic events and processes that influence habitability at human scales. ASTER's monitoring and mapping capabilities are illustrated by this series of images of the San Francisco area. The visible and near infrared image reveals suspended sediment in the bays, vegetation health, and details of the urban environment. Flying over San Francisco (3.2MB) (high-res (18.3MB)), we see the downtown, and shadows of the large buildings. Past the Golden Gate Bridge and Alcatraz Island, we cross San Pablo Bay and enter Suisun Bay. Turning south, we fly over the Berkeley and Oakland Hills. Large salt evaporation ponds come into view at the south end of San Francisco Bay. We turn northward, and approach San Francisco Airport. Rather than landing and ending our flight, we see this is as only the beginning of a 6 year mission to better understand the habitability of the world on which we live. For more information: ASTER images through Visible Earth ASTER Web Site Image courtesy of MITI, ERSDAC, JAROS, and the U.S./Japan ASTER Science Team

  17. Northern California near San Francisco

    NASA Image and Video Library

    1974-01-01

    SL4-138-3843 (1 Jan. 1974) --- A part of northern California centered near San Francisco Bay photographed at 3 p.m. Jan. 2, 1974, from the Skylab space station in Earth orbit. This near vertical view encompasses the coastline from Monterey Bay (right) to about 50 miles north of Point Reyes (left) and includes, from bottom to top, San Francisco Bay (center), Sacramento Valley (left center), San Joaquin Valley (right center), and the snow-covered Sierra Nevada. Afternoon shadows sharply delineate a valley which parallels San Francisco Bay, crosses Point Reyes, and lies between the Bay and the Pacific coastline. This valley marks the location of the San Andreas Fault, a major break in the Earth's crust. Forces acting on the crust are causing the land west (bottom) of the fault line to move north relative to land on the east side. The Skylab 4 astronauts photographed major fault zones in South America, New Zealand, Japan and Africa for use in the study of worldwide tectonic system. Agricultural areas in the Sacramento and San Joaquin Valleys are indicated by the tan areas which are easily discerned in contrast to the green-gray background. Photo credit: NASA

  18. 77 FR 15260 - Safety Zone; San Francisco Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... safety zone for the San Francisco Giants Fireworks Display in the Captain of the Port, San Francisco area... position 37 46'39.9'' N, 122 23'06.78'' W (NAD83) for the San Francisco Giants Fireworks Display in 33 CFR...

  19. 76 FR 14051 - Notice of Inventory Completion: San Francisco State University, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ... inventory of human remains in the control of San Francisco State University, San Francisco, CA. The human... American human remains. The National Park Service is not responsible for the determinations in this notice. A detailed assessment of the human remains was made by San Francisco State University...

  20. 28. Photocopy of photograph (from San Francisco Chronicle Library, San ...

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

    28. Photocopy of photograph (from San Francisco Chronicle Library, San Francisco, California, c. 1930 (?) EXTERIOR, DETAIL OF MISSION BELL IN FRONT OF CONVENTO, C. 1930 (?) - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  1. San Francisco floating STOLport study

    NASA Technical Reports Server (NTRS)

    1974-01-01

    The operational, economic, environmental, social and engineering feasibility of utilizing deactivated maritime vessels as a waterfront quiet short takeoff and landing facility to be located near the central business district of San Francisco was investigated. Criteria were developed to evaluate each site, and minimum standards were established for each criterion. Predicted conditions at the two sites were compared to the requirements for each of the 11 criteria as a means of evaluating site performance. Criteria include land use, community structure, economic impact, access, visual character, noise, air pollution, natural environment, weather, air traffic, and terminal design.

  2. South San Francisco Bay, California

    USGS Publications Warehouse

    Dartnell, Peter; Gibbons, Helen

    2007-01-01

    View eastward. Elevations in mapped area color coded: purple (approx 15 m below sea level) to red-orange (approx 90 m above sea level). South San Francisco Bay is very shallow, with a mean water depth of 2.7 m (8.9 ft). Trapezoidal depression near San Mateo Bridge is where sediment has been extracted for use in cement production and as bay fill. Land from USGS digital orthophotographs (DOQs) overlaid on USGS digital elevation models (DEMs). Distance across bottom of image approx 11 km (7 mi); vertical exaggeration 1.5X.

  3. Jack London and the San Francisco earthquake

    USGS Publications Warehouse

    Sachs, J.S.

    1982-01-01

    After it was over, it seemed to many, and especially to eyewitnesses like Jack London, that the earthquake and fire had devastated San Francisco. However people were confident that, like the phoeniz, San Francisco would rise from the ashes and regain her palce as the "Imperial City of the West." 

  4. Trouble Brewing in San Francisco. Policy Brief

    ERIC Educational Resources Information Center

    Buck, Stuart

    2010-01-01

    The city of San Francisco will face enormous budgetary pressures from the growing deficits in public pensions, both at a state and local level. In this policy brief, the author estimates that San Francisco faces an aggregate $22.4 billion liability for pensions and retiree health benefits that are underfunded--including $14.1 billion for the city…

  5. 42. Post Engineer Office, Presidio of San Francisco, Letterman Army ...

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

    42. Post Engineer Office, Presidio of San Francisco, Letterman Army Hospital, X-Ray Department and Second Floor Plan, X-Ray Department Plan, Building 1006. no date. BUILDING 1006. - Presidio of San Francisco, Letterman General Hospital, Building No. 27, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

  6. 21. Post Engineer Office, Presidio of San Francisco, Letterman Army ...

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

    21. Post Engineer Office, Presidio of San Francisco, Letterman Army Hospital. EKG Cardiology Clinic, Building 1049. December 1955. BUILDING 1049. - Presidio of San Francisco, Letterman General Hospital, Building No. 12, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

  7. 22. Post Engineer Office, Presidio of San Francisco, Building # ...

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

    22. Post Engineer Office, Presidio of San Francisco, Building # 1049 Letterman General Hospital. Alterations to EKG Cardiology Clinic. November 1963. BUILDING 1049. - Presidio of San Francisco, Letterman General Hospital, Building No. 12, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

  8. Presidio of San Francisco. Sheet 27. June 1945. SHOWING EASTERN ...

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

    Presidio of San Francisco. Sheet 27. June 1945. SHOWING EASTERN PORTION OF AREA B, BUILDINGS 901-919 AND WESTERN PORTION OF CRISSY FIELD - Presidio of San Francisco, Enlisted Men's Barracks Type, West end of Crissy Field, between Pearce & Maudlin Streets, San Francisco, San Francisco County, CA

  9. Presidio of San Francisco. Sheet 26. March 1943. SHOWING AREA ...

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

    Presidio of San Francisco. Sheet 26. March 1943. SHOWING AREA B, BUILDINGS 901-919; PART OF BUILDINGS 949 AND 950 ARE SHOWN IN UPPER LIFT CORNER OF DRAWING - Presidio of San Francisco, Enlisted Men's Barracks Type, West end of Crissy Field, between Pearce & Maudlin Streets, San Francisco, San Francisco County, CA

  10. 41. Post Engineer Office, Presidio of San Francisco, Letterman Army ...

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

    41. Post Engineer Office, Presidio of San Francisco, Letterman Army Hospital, First Floor Plan, Main Laboratory Section and Plan, Building 1006. no date BUILDING 1006. - Presidio of San Francisco, Letterman General Hospital, Building No. 27, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

  11. 34. Fort Winfield Scott and Presidio of San Francisco. August ...

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

    34. Fort Winfield Scott and Presidio of San Francisco. August 1918. SHOWING THE LETTERMAN HOSPITAL COMPLEX, FOLLOWING CONSTRUCTION OF BUILDING 1006 AND 1049, IN CONTEXT WITH ENTIRE PRESIDIO IN 1918. - Presidio of San Francisco, Letterman General Hospital, Building No. 27, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

  12. Space Radar Image of San Francisco, California

    NASA Image and Video Library

    1999-04-15

    This image of San Francisco, California shows how the radar distinguishes between densely populated urban areas and nearby areas that are relatively unsettled. Downtown San Francisco is at the center and the city of Oakland is at the right across the San Francisco Bay. Some city areas, such as the South of Market, called the SOMA district in San Francisco, appear bright red due to the alignment of streets and buildings to the incoming radar beam. Various bridges in the area are also visible including the Golden Gate Bridge (left center) at the opening of San Francisco Bay, the Bay Bridge (right center) connecting San Francisco and Oakland, and the San Mateo Bridge (bottom center). All the dark areas on the image are relatively smooth water: the Pacific Ocean to the left, San Francisco Bay in the center, and various reservoirs. Two major faults bounding the San Francisco-Oakland urban areas are visible on this image. The San Andreas fault, on the San Francisco peninsula, is seen in the lower left of the image. The fault trace is the straight feature filled with linear reservoirs which appear dark. The Hayward fault is the straight feature on the right side of the image between the urban areas and the hillier terrain to the east. The image is about 42 kilometers by 58 kilometers (26 miles by 36 miles) with north toward the upper right. This area is centered at 37.83 degrees north latitude, 122.38 degrees east longitude. http://photojournal.jpl.nasa.gov/catalog/PIA01791

  13. Space Radar Image of San Francisco, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This image of San Francisco, California shows how the radar distinguishes between densely populated urban areas and nearby areas that are relatively unsettled. Downtown San Francisco is at the center and the city of Oakland is at the right across the San Francisco Bay. Some city areas, such as the South of Market, called the SOMA district in San Francisco, appear bright red due to the alignment of streets and buildings to the incoming radar beam. Various bridges in the area are also visible including the Golden Gate Bridge (left center) at the opening of San Francisco Bay, the Bay Bridge (right center) connecting San Francisco and Oakland, and the San Mateo Bridge (bottom center). All the dark areas on the image are relatively smooth water: the Pacific Ocean to the left, San Francisco Bay in the center, and various reservoirs. Two major faults bounding the San Francisco-Oakland urban areas are visible on this image. The San Andreas fault, on the San Francisco peninsula, is seen in the lower left of the image. The fault trace is the straight feature filled with linear reservoirs which appear dark. The Hayward fault is the straight feature on the right side of the image between the urban areas and the hillier terrain to the east. The image is about 42 kilometers by 58 kilometers (26 miles by 36 miles) with north toward the upper right. This area is centered at 37.83 degrees north latitude, 122.38 degrees east longitude. 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 October 3, 1994. SIR-C/X-SAR, a joint mission of the German, Italian and the United States space agencies, is part of NASA's Mission to Planet Earth.

  14. 2. SAN FRANCISCO STREET PROFILES: Photocopy of engraving, c. 1880, ...

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

    2. SAN FRANCISCO STREET PROFILES: Photocopy of engraving, c. 1880, showing street profiles of two San Francisco cable railroads. Figure 10 illustrates the mainline of the Sutter Street Railroad on Sutter Street, while Figure 11 shows the route of the Presidio & Ferries Railroad along Union Street. Note the lack of significant grades along the Sutter Street route. - San Francisco Cable Railway, Washington & Mason Streets, San Francisco, San Francisco County, CA

  15. 1. SAN FRANCISCO STREET PROFILES: Photocopy of engraving, c. 1880, ...

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

    1. SAN FRANCISCO STREET PROFILES: Photocopy of engraving, c. 1880, showing street profiles of three San Francisco cable lines. Figure 7, at bottom of engraving, is the profile of Hallidie's Clay Street Hill Railroad. Figures 8 and 9 show the grades for the California Street Cable Railroad and the Geary Street Park & Ocean Railroad respectively. Note the lack of significant grades along Geary Street. - San Francisco Cable Railway, Washington & Mason Streets, San Francisco, San Francisco County, CA

  16. Suicide Among Chinese in San Francisco

    ERIC Educational Resources Information Center

    Bourne, Peter G.

    1973-01-01

    Reports on a study which investigated suicide among Chinese in San Francisco, its relationship to age and sex distribution, place of birth, marital status, occupation, and methods and causes of suicide. (SF)

  17. Secrets Shared: A Conversation with Francisco Jimemez.

    ERIC Educational Resources Information Center

    Barrera, Rosalinda B.

    2003-01-01

    Presents an interview with Francisco Jimenez. Notes that he recently received the Tomas Rivera Mexican American Book Award for his authorship of "Breaking Through." Discusses his works and new ideas for future writing. (SG)

  18. A Community Stormwater Investigation, San Francisco, CA

    NASA Astrophysics Data System (ADS)

    Chio, J.; Garcia, E.; Hernandez, M.; Devine, M.; Isip, N.; Jiang, J.; Li, A.; Li, D.; Lopez, J.; Mark, J.; McGuire, S.; Navarro, K.; Negrete, R.; Orellana, S.; Yun, C.; Bissell, M.; Neiss, J.

    2008-12-01

    The San Francisco Bay watershed covers 40% of the State of California. Nonpoint source pollutants from cars, lawns, houses, parks and people residing within the watershed contribute contamination into San Francisco Bay. To measure the contribution from our neighborhoods we collected runoff from storm-drains at 10 different sites around San Francisco and tested them for heavy metals, Total Organic Carbons (TOC), and Methylene Blue Active Substances (MBAS) during a six-month period. Each sample site location is situated within one block of each participant's home. The goal of this study was to determine the contaminants contributed as nonpoint source pollution into San Francisco Bay. Our results show that a variety of contaminants are entering the Bay's ecosystem via sources in our residential settings. While this contribution may be thought of as unsubstantial, our results show that our neighborhoods are significant sources of watershed pollution.

  19. San Francisco and Bay Area, CA, USA

    NASA Image and Video Library

    1991-05-06

    STS039-89-053 (28 April-6 May 1991) --- A 70mm, infrared frame of the city of San Francisco, taken on a clear day. The gray areas represent urban regions, and the red areas are vegetated. Within the city of San Francisco, parks like Golden Gate park and the Presidio at the base of the Golden Gate Bridge easily stand out from the well-developed parts of the city. Major thoroughfares and bridges (Golden Gate and Bay Bridges) are seen as are other landmarks such as Candlestick Park and Alcatraz. The trace of the San Andreas faults show as a straight valley running northerly along the San Francisco peninsula. Good detail is visible in the turbid waters of San Francisco Bay.

  20. Secrets Shared: A Conversation with Francisco Jimemez.

    ERIC Educational Resources Information Center

    Barrera, Rosalinda B.

    2003-01-01

    Presents an interview with Francisco Jimenez. Notes that he recently received the Tomas Rivera Mexican American Book Award for his authorship of "Breaking Through." Discusses his works and new ideas for future writing. (SG)

  1. Gila San Francisco Decision Support Tool - 2010

    SciTech Connect

    Sun, Amy Cha-Tien; Tidwell, Vincent C.; Klisa, Geoff; Poplionski, Will

    2014-12-01

    The Gila-San Francisco Decision Support Tool analyzes the water demand and supply for the Gila San Francisco region spanning four counties in southwestern New Mexico (Catron, Hidalgo, Luna and Grant). Catalyzed by the 2004 Arizona Water Settlement Act and prompted by a keen awareness for the unique ecology in the region, the model was developed by Sandia with a collaborative modeling team from federal, state, local, and public stakeholders

  2. ASTER Images San Francisco Bay Area

    NASA Image and Video Library

    2000-04-26

    This image of the San Francisco Bay region was acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters about 50 to 300 feet ), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet. Image: This image covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long in three bands of the reflected visible and infrared wavelength region. The combination of bands portrays vegetation in red, and urban areas in gray. Sediment in the Suisun Bay, San Pablo Bay, San Francisco Bay, and the Pacific Ocean shows up as lighter shades of blue. Along the west coast of the San Francisco Peninsula, strong surf can be seen as a white fringe along the shoreline. A powerful rip tide is visible extending westward from Daly City into the Pacific Ocean. In the lower right corner, the wetlands of the South San Francisco Bay National Wildlife Refuge appear as large dark blue and brown polygons. The high spatial resolution of ASTER allows fine detail to be observed in the scene. The main bridges of the area (San Mateo, San Francisco-Oakland Bay, Golden Gate, Richmond-San Rafael, Benicia-Martinez, and Carquinez) are easily picked out, connecting the different communities in the Bay area. Shadows of the towers along the Bay Bridge can be seen over the adjacent bay water. With enlargement the entire road network can be easily mapped; individual buildings are visible, including the shadows of the high-rises in downtown San Francisco. Inset: This enlargement of the San Francisco Airport highlights the high spatial resolution of ASTER. With further enlargement and careful examination, airplanes can be seen at the terminals. http://photojournal.jpl.nasa.gov/catalog/PIA02606

  3. 3. Historic American Buildings Survey deYoung Museum, San Francisco MISSION ...

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

    3. Historic American Buildings Survey deYoung Museum, San Francisco MISSION BEFORE 1835 (ORIANA DAY PAINTINGS - (1861 - 1885) - Mission San Francisco de Asis, Mission & Sixteenth Streets, San Francisco, San Francisco County, CA

  4. 7. Historic American Buildings Survey deYoung Museum San Francisco, California ...

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

    7. Historic American Buildings Survey deYoung Museum San Francisco, California GENERAL VIEW c. 1860 - Mission San Francisco de Asis, Mission & Sixteenth Streets, San Francisco, San Francisco County, CA

  5. 33 CFR 165.1192 - Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surrounding San Francisco International Airport and Oakland International Airport, San Francisco Bay... Security Zones; Waters surrounding San Francisco International Airport and Oakland International Airport... Francisco International Airport Security Zone. This security zone includes all waters extending from the...

  6. Space Radar Image of San Francisco, California

    NASA Image and Video Library

    1999-05-01

    This is a radar image of San Francisco, California, taken on October 3,1994. The image is about 40 kilometers by 55 kilometers (25 miles by 34 miles) with north toward the upper right. Downtown San Francisco is visible in the center of the image with the city of Oakland east (to the right) across San Francisco Bay. Also visible in the image is the Golden Gate Bridge (left center) and the Bay Bridge connecting San Francisco and Oakland. North of the Bay Bridge is Treasure Island. Alcatraz Island appears as a small dot northwest of Treasure Island. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on orbit 56. The image is centered at 37 degrees north latitude, 122degrees west longitude. This single-frequency SIR-C image was obtained by the L-band (24 cm) radar channel, horizontally transmitted and received. Portions of the Pacific Ocean visible in this image appear very dark as do other smooth surfaces such as airport runways. Suburban areas, with the low-density housing and tree-lined streets that are typical of San Francisco, appear as lighter gray. Areas with high-rise buildings, such as those seen in the downtown areas, appear in very bright white, showing a higher density of housing and streets which run parallel to the radar flight track. http://photojournal.jpl.nasa.gov/catalog/PIA01751

  7. 40. Historic American Buildings Survey San Francisco Chronicle Collection San ...

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

    40. Historic American Buildings Survey San Francisco Chronicle Collection San Francisco, California March 24, 1924 VIEW OF HIGH ALTAR - Mission San Carlos Borromeo, Rio Road & Lausen Drive, Carmel-by-the-Sea, Monterey County, CA

  8. 19. Photocopy of photograph (from De Young Museum, San Francisco, ...

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

    19. Photocopy of photograph (from De Young Museum, San Francisco, California, late 1890's) EXTERIOR, GENERAL VIEW OF MISSION, LATE 1890'S - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  9. 18. Photocopy of photograph (from De Young Museum, San Francisco, ...

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

    18. Photocopy of photograph (from De Young Museum, San Francisco, California, 1895) EXTERIOR, SOUTH FRONT OF MISSION AND CONVENTO, 1895 - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  10. 13. Photocopy of photograph (from Golden Gate Museum, San Francisco, ...

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

    13. Photocopy of photograph (from Golden Gate Museum, San Francisco, California, 1850's) EXTERIOR, VIEW OF CONVENTO BEFORE RESTORATION, 1850'S - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  11. 5. Photocopy of painting (from De Young Museum, San Francisco, ...

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

    5. Photocopy of painting (from De Young Museum, San Francisco, California, Oriana Day, artist, c. 1861-1885) EXTERIOR VIEW OF MISSION BEFORE 1835 - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  12. 6. Photocopy of painting (from California Historical Society, San Francisco, ...

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

    6. Photocopy of painting (from California Historical Society, San Francisco, California, Oriana Day, artist, 1879) EXTERIOR, VIEW FROM AN ANGLE OF MISSION AND SURROUNDING STRUCTURES - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  13. A Glorious Century of Art Education: San Francisco's Art Institute

    ERIC Educational Resources Information Center

    Dobbs, Stephen Mark

    1976-01-01

    Author described the life and times of the San Francisco Art Institute and reviewed the forces that made San Francisco a city of more than ordinary awareness of the arts in its civic and civil existence. (Editor/RK)

  14. San Francisco and Bay Area, CA, USA

    NASA Technical Reports Server (NTRS)

    1991-01-01

    This cloud free color infrared view of San Francisco and Bay Area, CA (38.0N, 122.5W) is unusual because the city is normally concealed from view by clouds and fog. Gray tones represent urban areas and the red toned areas are vegetated. Within the city, parks easily stand out from the well-developed parts of the city as enclaves of color. The trace of the San Andreas fault shows as a straight valley running across the San Francisco peninsula.

  15. The San Francisco volcanic field, Arizona

    USGS Publications Warehouse

    Priest, S.S.; Duffield, W.A.; Malis-Clark, Karen; Hendley, J. W.; Stauffer, P.H.

    2001-01-01

    Northern Arizona's San Francisco Volcanic Field, much of which lies within Coconino and Kaibab National Forests, is an area of young volcanoes along the southern margin of the Colorado Plateau. During its 6-million-year history, this field has produced more than 600 volcanoes. Their activity has created a topographically varied landscape with forests that extend from the Pi?on-Juniper up to the Bristlecone Pine life zones. The most prominent landmark is San Francisco Mountain, a stratovolcano that rises to 12,633 feet and serves as a scenic backdrop to the city of Flagstaff.

  16. San Francisco Bay Long Term Management Strategy for Dredging

    EPA Pesticide Factsheets

    The San Francisco Bay Long Term Management Strategy (LTMS) is a cooperative effort to develop a new approach to dredging and dredged material disposal in the San Francisco Bay area. The LTMS serves as the Regional Dredging Team for the San Francisco area.

  17. 33 CFR 165.T11-534 - Safety zone; Bay Bridge construction, San Francisco Bay, San Francisco, CA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety zone; Bay Bridge construction, San Francisco Bay, San Francisco, CA. 165.T11-534 Section 165.T11-534 Navigation and Navigable... Eleventh Coast Guard District § 165.T11-534 Safety zone; Bay Bridge construction, San Francisco Bay, San...

  18. 77 FR 37603 - Safety Zone; San Francisco Independence Day Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-22

    ... Captain of the Port, San Francisco area of responsibility during the dates and times noted below. This action is necessary to protect life and property of the maritime public from the hazards associated...

  19. San Francisco's New Zoo's Connections for Conservation.

    ERIC Educational Resources Information Center

    Routman, Emily

    2001-01-01

    Provides information on a redevelopment project at the San Francisco Zoo known as the New Zoo. The explicit goal of the project is to inspire a sense of caring and appreciation for wildlife that is the foundation of a conservation ethic. (DDR)

  20. San Francisco and Bay Area, CA, USA

    NASA Image and Video Library

    1991-05-06

    STS039-151-181A (28 April-6 May 1991) --- Large format (five-inch) frame of the San Francisco/Oakland Bay Area of northern California. Stratus clouds at 35,000 feet and cumulus clouds at about 15,000 feet are seen over the Pacific Coast, obscuring the Golden Gate Bridge.

  1. Potamocorbula amurensis discovered in San Francisco Bay

    USGS Publications Warehouse

    Schemel, Laurence E.

    1989-01-01

    The small Asian clam, Potamocorbula amurensis, is now a major component of benthic communities in most areas of northern San Francisco Bay and some areas of South Bay. Because of its wide tolerance of salinity and other environmental variables and its high abundance in many areas, benthic ecologists believe this recent invasion may represent a major and permanent change in the bay system.

  2. San Francisco, California: Solar in Action (Brochure)

    SciTech Connect

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Francisco, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  3. Civil Service College in San Francisco.

    ERIC Educational Resources Information Center

    Samii, Farhad

    1978-01-01

    The Civil Service College in San Francisco provides preentry level training, inservice training, and promotional training for public employment. The free classes are open to the general public and cover five curriculum areas: supervision and management, clerical and secretarial, communication, community service, and technical. (MB)

  4. Simulations of the 1906 San Francisco Earthquake

    SciTech Connect

    Rodgers, A; Petersson, A; Tkalcic, H

    2005-12-16

    Simulations of the Great 1906 San Francisco earthquake are being performed as part of the event's centenary. LLNL is participating in a large effort to study this event and possible consequences if the event were to happen today. This document is meant to describe our efforts to others participating in the project.

  5. The Third International San Francisco Book Fair.

    ERIC Educational Resources Information Center

    Kalmon, Winn; And Others

    Friends of Books and Comics presents its catalog of the Third International San Francisco Book Fair, a marketplace of alternative books, comics, and magazines. Nearly 200 alternative and small presses are listed alphabetically with address, telephone number, names of principal people involved, and a brief description of type and subject of…

  6. The Third International San Francisco Book Fair.

    ERIC Educational Resources Information Center

    Kalmon, Winn; And Others

    Friends of Books and Comics presents its catalog of the Third International San Francisco Book Fair, a marketplace of alternative books, comics, and magazines. Nearly 200 alternative and small presses are listed alphabetically with address, telephone number, names of principal people involved, and a brief description of type and subject of…

  7. Lick-Wilmerding School San Francisco, California.

    ERIC Educational Resources Information Center

    Fang, Eric C. Y.

    1997-01-01

    Examines the design of a new library/art facility at a San Francisco high school that complemented the school's contemporary academic program and reputation for excellence. Discusses the planning and architectural strategies and the technological and convenience additions designed to meet greater student needs. (GR)

  8. Salt Ponds, South San Francisco Bay

    NASA Technical Reports Server (NTRS)

    2002-01-01

    higher resolution 1000 pixel-wide image The red and green colors of the salt ponds in South San Francisco Bay are brilliant visual markers for astronauts. The STS-111 crew photographed the bay south of the San Mateo bridge in June, 2002. This photograph is timely because a large number of the salt ponds (more than 16,500 acres) that are owned by Cargill, Inc. will be sold in September for wetlands restoration-a restoration project second in size only to the Florida Everglades project. Rough boundaries of the areas to be restored are outlined on the image. Over the past century, more than 80% of San Francisco Bay's wetlands have been filled and developed or diked off for salt mining. San Francisco Bay has supported salt mining since 1854. Cargill has operated most of the bay's commercial salt ponds since 1978, and had already sold thousands of acres to the State of California and the Don Edwards National Wildlife Refuge. This new transaction will increase San Francisco Bay's existing tidal wetlands by 50%. The new wetlands, to be managed by the California Department of Fish and Game and the U.S. Fish and Wildlife Service, will join the Don Edwards National Wildlife Refuge, and provide valuable habitat for birds, fish and other wildlife. The wetlands will contribute to better water quality and flood control in the bay, and open up more coastline for public enjoyment. Additional information: Cargill Salt Ponds (PDF) Turning Salt Into Environmental Gold Salt Ponds on Way to Becoming Wetlands Historic Agreement Reached to Purchase San Francisco Bay Salt Ponds Astronaut photograph STS111-376-3 was provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC Gateway to Astronaut Photography of Earth

  9. The San Francisco Consortium; An Educational Association for Urban Affairs. Progress Report.

    ERIC Educational Resources Information Center

    San Francisco Consortium, CA.

    The San Francisco Consortium was formed in the Fall of 1967 by 5 institutions: City College of San Francisco, Golden Gate College, San Francisco State College, University of California-San Francisco Medical Center and the University of San Francisco. Its primary purpose is to be the instrument through which the resources of the major local…

  10. Radar image San Francisco Bay Area, California

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The San Francisco Bay Area in California and its surroundings are shown in this radar image from the Shuttle Radar Topography Mission (SRTM). On this image, smooth areas, such as the bay, lakes, roads and airport runways appear dark, while areas with buildings and trees appear bright. Downtown San Francisco is at the center and the city of Oakland is at the right across the San Francisco Bay. Some city areas, such as the South of Market district in San Francisco, appear bright due to the alignment of streets and buildings with respect to the incoming radar beam. Three of the bridges spanning the Bay are seen in this image. The Bay Bridge is in the center and extends from the city of San Francisco to Yerba Buena and Treasure Islands, and from there to Oakland. The Golden Gate Bridge is to the left and extends from San Francisco to Sausalito. The Richmond-San Rafael Bridge is in the upper right and extends from San Rafael to Richmond. Angel Island is the large island east of the Golden Gate Bridge, and lies north of the much smaller Alcatraz Island. The Alameda Naval Air Station is seen just below the Bay Bridge at the center of the image. Two major faults bounding the San Francisco-Oakland urban areas are visible on this image. The San Andreas fault, on the San Francisco peninsula, is seen on the left side of the image. The fault trace is the straight feature filled with linear reservoirs, which appear dark. The Hayward fault is the straight feature on the right side of the image between the urban areas and the hillier terrain to the east.

    This radar image was acquired by just one of SRTM's two antennas and, consequently, does not show topographic data, but only the strength of the radar signal reflected from the ground. This signal, known as radar backscatter, provides insight into the nature of the surface, including its roughness, vegetation cover and urbanization. The overall faint striping pattern in the images is a data processing artifact due to the

  11. San Francisco and Bay Area, CA, USA

    NASA Image and Video Library

    1991-06-14

    STS040-152-100 (5-14 June 1991) --- Although clouds obscure part of the city of San Francisco and the mouth of San Francisco Bay, development and physiographic features in the immediate vicinity of the bay are well displayed. The photograph clearly shows the eastern part of the city, including the Embarcadero, the Bay Bridge, which was damaged in the 1989 earthquake, and Candlestick Park, San Mateo, and Dumbarton Bridges, cross the southern portion of the bay. Vari-colored salt ponds also rim the southern Bay near Moffett Field. Highway 280 runs along the San Andreas fault south of the city. On the eastern margin of the bay are Berkeley the Sacramento River and the Haywood and Calaveras faults.

  12. Radar image San Francisco Bay Area, California

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The San Francisco Bay Area in California and its surroundings are shown in this radar image from the Shuttle Radar Topography Mission (SRTM). On this image, smooth areas, such as the bay, lakes, roads and airport runways appear dark, while areas with buildings and trees appear bright. Downtown San Francisco is at the center and the city of Oakland is at the right across the San Francisco Bay. Some city areas, such as the South of Market district in San Francisco, appear bright due to the alignment of streets and buildings with respect to the incoming radar beam. Three of the bridges spanning the Bay are seen in this image. The Bay Bridge is in the center and extends from the city of San Francisco to Yerba Buena and Treasure Islands, and from there to Oakland. The Golden Gate Bridge is to the left and extends from San Francisco to Sausalito. The Richmond-San Rafael Bridge is in the upper right and extends from San Rafael to Richmond. Angel Island is the large island east of the Golden Gate Bridge, and lies north of the much smaller Alcatraz Island. The Alameda Naval Air Station is seen just below the Bay Bridge at the center of the image. Two major faults bounding the San Francisco-Oakland urban areas are visible on this image. The San Andreas fault, on the San Francisco peninsula, is seen on the left side of the image. The fault trace is the straight feature filled with linear reservoirs, which appear dark. The Hayward fault is the straight feature on the right side of the image between the urban areas and the hillier terrain to the east.

    This radar image was acquired by just one of SRTM's two antennas and, consequently, does not show topographic data, but only the strength of the radar signal reflected from the ground. This signal, known as radar backscatter, provides insight into the nature of the surface, including its roughness, vegetation cover and urbanization. The overall faint striping pattern in the images is a data processing artifact due to the

  13. San Francisco and Bay Area, CA, USA

    NASA Image and Video Library

    1973-06-22

    SL2-03-118 (June 1973) --- An infrared photograph of the San Francisco Bay, California area, taken from the Skylab 1/2 space station in Earth orbit. THE PICTURE SHOULD BE HELD WITH THE CLOUDS AND PACIFIC OCEAN ON THE LEFT. This photograph was taken by one of the six lenses of the Itek-furnished S190-A Multispectral Photographic Facility Experiment in the Multiple Docking Adapter of the space station. Type 2443 film was used. Note the thickly populated and highly developed area around the bay. Among the cities visible in this photograph are San Francisco, Oakland, Berkeley and San Jose. This view extends eastward to show a portion of the San Joaquin Valley. The S190-A experiment is part of the Skylab Earth Resources Experiment Package (EREP). Photo credit: NASA

  14. Agriculture, Rio Sao Francisco, Brazil, South America

    NASA Image and Video Library

    1988-10-03

    The large field patterns in this view of the Rio Sao Francisco basin, Brazil, South America, (11.5S, 43.5W) indicate a commercial agriculture venture; family subsistence farms are much smaller and laid out in different patterns. Land clearing in Brazil has increased at an alarming rate in recent years and preliminary estimates suggest a 25 to 30% increase in deforestation since 1984. The long term impact on the ecological processes are still unknown.

  15. San Francisco and Bay Area, CA, USA

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Although clouds obscure part of the city of San Francisco and the mouth of the Bay (37.5N, 122.0W), many cultural and natural features in the immediate vicinity are obvious. The Bay Bridge which was damaged in the 1989 earthquake, Candlestick Park, San Mateo and Dumbarton Bridges as well as the various colored settling ponds rimming the south end of the Bay, the San Andreas and Calaveras faults and many of the major highways can be seen.

  16. Agriculture, Rio Sao Francisco, Brazil, South America

    NASA Technical Reports Server (NTRS)

    1988-01-01

    The large field patterns in this view of the Rio Sao Francisco basin, Brazil, South America, (11.5S, 43.5W) indicate a commercial agriculture venture; family subsistence farms are much smaller and laid out in different patterns. Land clearing in Brazil has increased at an alarming rate in recent years and preliminary estimates suggest a 25 to 30% increase in deforestation since 1984. The long term impact on the ecological processes are still unknown.

  17. San Francisco and Bay Area, CA, USA

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Although clouds obscure part of the city of San Francisco and the mouth of the Bay (37.5N, 122.0W), many cultural and natural features in the immediate vicinity are obvious. The Bay Bridge which was damaged in the 1989 earthquake, Candlestick Park, San Mateo and Dumbarton Bridges as well as the various colored settling ponds rimming the south end of the Bay, the San Andreas and Calaveras faults and many of the major highways can be seen.

  18. An overview of San Francisco Bay PORTS

    USGS Publications Warehouse

    Cheng, Ralph T.; McKinnie, David; English, Chad; Smith, Richard E.

    1998-01-01

    The Physical Oceanographic Real-Time System (PORTS) provides observations of tides, tidal currents, and meteorological conditions in real-time. The San Francisco Bay PORTS (SFPORTS) is a decision support system to facilitate safe and efficient maritime commerce. In addition to real-time observations, SFPORTS includes a nowcast numerical model forming a San Francisco Bay marine nowcast system. SFPORTS data and nowcast numerical model results are made available to users through the World Wide Web (WWW). A brief overview of SFPORTS is presented, from the data flow originated at instrument sensors to final results delivered to end users on the WWW. A user-friendly interface for SFPORTS has been designed and implemented. Appropriate field data analysis, nowcast procedures, design and generation of graphics for WWW display of field data and nowcast results are presented and discussed. Furthermore, SFPORTS is designed to support hazardous materials spill prevention and response, and to serve as resources to scientists studying the health of San Francisco Bay ecosystem. The success (or failure) of the SFPORTS to serve the intended user community is determined by the effectiveness of the user interface.

  19. Morphological evolution in the San Francisco Bight

    USGS Publications Warehouse

    Hanes, Daniel M.; Barnard, Patrick L.

    2007-01-01

    San Francisco Bight, located near the coast of San Francisco, USA, is an extremely dynamic tidal inlet environmental subject to large waves and strong currents. Wave heights coming from the Pacific Ocean commonly exceed 5 m during winter storms. During peak flow tidal currents approach 3 m/s at the Golden Gate, a 1 km wide entrance that connects San Francisco Bay to the Pacific Ocean. Flow structure in this region varies markedly spatially and temporally due to the complex interaction by wind, waves and tidal currents. A multibeam sonar survey was recently completed that mapped in high resolution, for the first time, the bottom morphology in the region of the ebb tidal delta. This data set includes a giant sand wave field covering an area of approximately 4 square kilometers. The new survey enables the calculation of seabed change that has occurred in the past 50 years, since the last comprehensive survey of the area was completed. This comparison indicates an average erosion of 60 centimeters which equates to a total volume change of approximately 9.3 x 107 m3. Morphologic change also indicates that flood channels have filled and that the entire ebb delta is contracting radially.

  20. City of San Francisco, California street tree resource analysis

    Treesearch

    E.G. McPherson; J.R. Simpson; P.J. Peper; Q. Xiao

    2004-01-01

    Street trees in San Francisco are comprised of two distinct populations, those managed by the city’s Department of Public Works (DPW) and those managed by private property owners with or without the help of San Francisco’s urban forestry nonprofit, Friends of the Urban Forest (FUF). These two entities believe that the public’s investment in stewardship of San Francisco...

  1. Deaths among homeless persons--San Francisco, 1985-1990.

    PubMed

    1991-12-20

    In San Francisco (1990 population: 723,959), an estimated 6000-18,000 persons are homeless. To characterize the causes of death among homeless persons in San Francisco during 1985-1990, the Health Care for the Homeless Program, San Francisco Department of Public Health, reviewed records of homeless decedents from the city medical examiner's (ME's) office. This report summarizes the results of that study.

  2. Space Radar Image of San Francisco, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This is a radar image of San Francisco, California, taken on October 3,1994. The image is about 40 kilometers by 55 kilometers (25 miles by 34 miles) with north toward the upper right. Downtown San Francisco is visible in the center of the image with the city of Oakland east (to the right) across San Francisco Bay. Also visible in the image is the Golden Gate Bridge (left center) and the Bay Bridge connecting San Francisco and Oakland. North of the Bay Bridge is Treasure Island. Alcatraz Island appears as a small dot northwest of Treasure Island. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on orbit 56. The image is centered at 37 degrees north latitude, 122degrees west longitude. This single-frequency SIR-C image was obtained by the L-band (24 cm) radar channel, horizontally transmitted and received. Portions of the Pacific Ocean visible in this image appear very dark as do other smooth surfaces such as airport runways. Suburban areas, with the low-density housing and tree-lined streets that are typical of San Francisco, appear as lighter gray. Areas with high-rise buildings, such as those seen in the downtown areas, appear in very bright white, showing a higher density of housing and streets which run parallel to the radar flight track. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), C-band (6 cm) and X-band (3cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes

  3. 76 FR 81371 - Safety Zone; San Francisco New Year's Eve Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-28

    ...The Coast Guard will enforce the safety zone for the annual San Francisco New Year's Eve Fireworks Display in the Captain of the Port, San Francisco area of responsibility during the dates and times noted below. This action is necessary to protect life and property of the maritime public from the hazards associated with the fireworks display. During the enforcement period, unauthorized persons or vessels are prohibited from entering into, transiting through, or anchoring in the safety zone, unless authorized by the Patrol Commander (PATCOM).

  4. ASTER Images San Francisco Bay Area

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This image of the San Francisco Bay region was acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters about 50 to 300 feet ), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.

    Image: This image covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long in three bands of the reflected visible and infrared wavelength region. The combination of bands portrays vegetation in red, and urban areas in gray. Sediment in the Suisun Bay, San Pablo Bay, San Francisco Bay, and the Pacific Ocean shows up as lighter shades of blue. Along the west coast of the San Francisco Peninsula, strong surf can be seen as a white fringe along the shoreline. A powerful rip tide is visible extending westward from Daly City into the Pacific Ocean. In the lower right corner, the wetlands of the South San Francisco Bay National Wildlife Refuge appear as large dark blue and brown polygons. The high spatial resolution of ASTER allows fine detail to be observed in the scene. The main bridges of the area (San Mateo, San Francisco-Oakland Bay, Golden Gate, Richmond-San Rafael, Benicia-Martinez, and Carquinez) are easily picked out, connecting the different communities in the Bay area. Shadows of the towers along the Bay Bridge can be seen over the adjacent bay water. With enlargement the entire road network can be easily mapped; individual buildings are visible, including the shadows of the high-rises in downtown San Francisco.

    Inset: This enlargement of the San Francisco Airport highlights the high spatial resolution of ASTER. With further enlargement and careful examination, airplanes can be seen at the terminals.

    Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth

  5. ASTER Images San Francisco Bay Area

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This image of the San Francisco Bay region was acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters about 50 to 300 feet ), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.

    Image: This image covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long in three bands of the reflected visible and infrared wavelength region. The combination of bands portrays vegetation in red, and urban areas in gray. Sediment in the Suisun Bay, San Pablo Bay, San Francisco Bay, and the Pacific Ocean shows up as lighter shades of blue. Along the west coast of the San Francisco Peninsula, strong surf can be seen as a white fringe along the shoreline. A powerful rip tide is visible extending westward from Daly City into the Pacific Ocean. In the lower right corner, the wetlands of the South San Francisco Bay National Wildlife Refuge appear as large dark blue and brown polygons. The high spatial resolution of ASTER allows fine detail to be observed in the scene. The main bridges of the area (San Mateo, San Francisco-Oakland Bay, Golden Gate, Richmond-San Rafael, Benicia-Martinez, and Carquinez) are easily picked out, connecting the different communities in the Bay area. Shadows of the towers along the Bay Bridge can be seen over the adjacent bay water. With enlargement the entire road network can be easily mapped; individual buildings are visible, including the shadows of the high-rises in downtown San Francisco.

    Inset: This enlargement of the San Francisco Airport highlights the high spatial resolution of ASTER. With further enlargement and careful examination, airplanes can be seen at the terminals.

    Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth

  6. 78 FR 54487 - YP Western Directory LLC, San Francisco Division, Publishing Operations Group, YP Subsidiary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-04

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF LABOR Employment and Training Administration YP Western Directory LLC, San Francisco Division, Publishing... Zero Chaos, San Francisco, California; YP Western Directory LLC, San Francisco Division, Publishing...

  7. 1. Historic American Buildings Survey San Francisco CallBulletin Library VIEW ...

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

    1. Historic American Buildings Survey San Francisco Call-Bulletin Library VIEW OF FACADE Demolished August 1940 - St. Rose's Church, North Brannan & Fifth Streets, San Francisco, San Francisco County, CA

  8. 1. Historic American Buildings Survey DeYoung Museum, San Francisco RUSSIAN ...

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

    1. Historic American Buildings Survey DeYoung Museum, San Francisco RUSSIAN HILL HOUSES (Photo taken in Middle 1850's) - Captain Dakin House, Taylor & Vallejo Streets, San Francisco, San Francisco County, CA

  9. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165.1187... Limited Access Areas Eleventh Coast Guard District § 165.1187 Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. (a) Location. All waters extending...

  10. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165.1187... Limited Access Areas Eleventh Coast Guard District § 165.1187 Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. (a) Location. All waters extending...

  11. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165.1187... Limited Access Areas Eleventh Coast Guard District § 165.1187 Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. (a) Location. All waters extending...

  12. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165.1187... Limited Access Areas Eleventh Coast Guard District § 165.1187 Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. (a) Location. All waters extending...

  13. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165.1187... Limited Access Areas Eleventh Coast Guard District § 165.1187 Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. (a) Location. All waters extending...

  14. 33 CFR 334.1065 - U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California; restricted area. 334.1065 Section 334.1065... Island, San Francisco Bay, California; restricted area. (a) The area. San Francisco Bay on the east...

  15. 33 CFR 334.1065 - U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California; restricted area. 334.1065 Section 334.1065... Island, San Francisco Bay, California; restricted area. (a) The area. San Francisco Bay on the east...

  16. 33 CFR 334.1065 - U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California; restricted area. 334.1065 Section 334.1065... Island, San Francisco Bay, California; restricted area. (a) The area. San Francisco Bay on the east...

  17. 33 CFR 334.1065 - U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California; restricted area. 334.1065 Section 334.1065... Island, San Francisco Bay, California; restricted area. (a) The area. San Francisco Bay on the east...

  18. 33 CFR 334.1065 - U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false U.S. Coast Guard Station, San Francisco Bay, Yerba Buena Island, San Francisco Bay, California; restricted area. 334.1065 Section 334.1065... Island, San Francisco Bay, California; restricted area. (a) The area. San Francisco Bay on the east...

  19. English Articulation between the San Francisco Unified School District and the City College of San Francisco. Youth Data Archive Issue Brief

    ERIC Educational Resources Information Center

    Gurantz, Oded

    2012-01-01

    San Francisco's Bridge to Success (BtS) initiative brings together the City and County of San Francisco, the San Francisco Unified School District (SFUSD), the City College of San Francisco (CCSF), and key community organizations to promote postsecondary success for underrepresented students. Various working groups, each comprised of staff from…

  20. 77 FR 37604 - Safety Zone; Fourth of July Fireworks, City of San Francisco, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-22

    ... SECURITY Coast Guard 33 CFR Part 165 Safety Zone; Fourth of July Fireworks, City of San Francisco, San... Guard will enforce the safety zone for the City of Sausalito's Fourth of July Fireworks in the Captain... Sausalito's Fourth of July Fireworks Display in 33 CFR 165.1191. This safety zone will be in effect from 9 a...

  1. 77 FR 70891 - Safety Zone; Bay Bridge Construction, San Francisco Bay, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-28

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Bay Bridge Construction, San Francisco Bay..., CA in support of the Bay Bridge Construction Safety Zone from November 1, 2012 through July 31, 2013... process would be completed. Because of the dangers posed by over-head construction of the Bay Bridge, the...

  2. 78 FR 34123 - Notice of Inventory Completion: San Francisco State University NAGPRA Program, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-06

    ... from site CA-PLA-9 in Placer County, CA. This notice is published as part of the National Park Service... site CA-PLA-9 in Placer County, CA, by San Francisco State University personnel in conjunction with... point. The age of site CA-PLA-9 is unknown, but the site is located within the historically documented...

  3. Radar image of Rio Sao Francisco, Brazil

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This radar image acquired by SRTM shows an area south of the Sao Francisco River in Brazil. The area is predominantly scrub forest. Areas such as these are difficult to map by traditional methods because of frequent cloud cover and local inaccessibility. Image brightness differences in this image are caused by differences in vegetation type and density. Tributaries of the Sao Francisco are visible in the upper right. The Sao Francisco River is a major source of water for irrigation and hydroelectric power. Mapping such regions will allow scientists to better understand the relationships between flooding cycles, forestation and human influences on ecosystems.

    This radar image was obtained by the Shuttle Radar Topography Mission as part of its mission to map the Earth's topography. The image was acquired by just one of SRTM's two antennas, and consequently does not show topographic data but only the strength of the radar signal reflected from the ground. This signal, known as radar backscatter, provides insight into the nature of the surface, including its roughness, vegetation cover, and urbanization.

    The Shuttle Radar Topography Mission (SRTM), launched on February 11, 2000, uses the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. The mission is designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, an additional C-band imaging antenna and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise, Washington, DC.

  4. Radar image of Rio Sao Francisco, Brazil

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This radar image acquired by SRTM shows an area south of the Sao Francisco River in Brazil. The area is predominantly scrub forest. Areas such as these are difficult to map by traditional methods because of frequent cloud cover and local inaccessibility. Image brightness differences in this image are caused by differences in vegetation type and density. Tributaries of the Sao Francisco are visible in the upper right. The Sao Francisco River is a major source of water for irrigation and hydroelectric power. Mapping such regions will allow scientists to better understand the relationships between flooding cycles, forestation and human influences on ecosystems.

    This radar image was obtained by the Shuttle Radar Topography Mission as part of its mission to map the Earth's topography. The image was acquired by just one of SRTM's two antennas, and consequently does not show topographic data but only the strength of the radar signal reflected from the ground. This signal, known as radar backscatter, provides insight into the nature of the surface, including its roughness, vegetation cover, and urbanization.

    The Shuttle Radar Topography Mission (SRTM), launched on February 11, 2000, uses the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. The mission is designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, an additional C-band imaging antenna and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise, Washington, DC.

  5. Shaded Relief of Rio Sao Francisco, Brazil

    NASA Image and Video Library

    2000-02-14

    This topographic image acquired by SRTM shows an area south of the Sao Francisco River in Brazil. The scrub forest terrain shows relief of about 400 meters (1300 feet). Areas such as these are difficult to map by traditional methods because of frequent cloud cover and local inaccessibility. This region has little topographic relief, but even subtle changes in topography have far-reaching effects on regional ecosystems. The image covers an area of 57 km x 79 km and represents one quarter of the 225 km SRTM swath. Colors range from dark blue at water level to white and brown at hill tops. The terrain features that are clearly visible in this image include tributaries of the Sao Francisco, the dark-blue branch-like features visible from top right to bottom left, and on the left edge of the image, and hills rising up from the valley floor. The San Francisco River is a major source of water for irrigation and hydroelectric power. Mapping such regions will allow scientists to better understand the relationships between flooding cycles, forestation and human influences on ecosystems. This shaded relief image was generated using topographic data from the Shuttle Radar Topography Mission. A computer-generated artificial light source illuminates the elevation data to produce a pattern of light and shadows. Slopes facing the light appear bright, while those facing away are shaded. On flatter surfaces, the pattern of light and shadows can reveal subtle features in the terrain. Shaded relief maps are commonly used in applications such as geologic mapping and land use planning. http://photojournal.jpl.nasa.gov/catalog/PIA02700

  6. San Francisco and Bay Area, CA, USA

    NASA Technical Reports Server (NTRS)

    1973-01-01

    Although clouds obscure part of the city of San Francisco and the mouth of the Bay (37.5N, 122.0W), many cultural and natural features in the immediate vicinity are obvious. The Bay Bridge which was damaged in the 1989 earthquake, Candlestick Park, San Mateo and Dumbarton Bridges as well as the various colored settling ponds rimming the south end of the Bay, the San Andreas and Calaveras faults and many of the major highways can be seen. Color infrared photography is very useful for haze penetration and greater definition of the imagery as well as vegetation detection, depicted as shades of red.

  7. Ancient tropical climates warm San Francisco gathering

    SciTech Connect

    Kerr, R.A.

    1994-01-14

    Climate records preserved in the Greenland ice sheet got a lot of the attention at the fall meeting of the American Geophysical Union (AGU) in San Francisco last month, but ancient tropical records were a rival attraction. In talks scattered in unrelated sessions, researchers reported a possible role for the tropics in driving the last ice age, a link between high latitudes and the tropics that may have redirected human evolution, and a tropical climate periodicity that may fill a gap in the understanding of climate variability.

  8. Legionellosis--the 1980 San Francisco outbreak.

    PubMed

    Conwill, D E; Werner, S B; Dritz, S K; Bissett, M; Coffey, E; Nygaard, G; Bradford, L; Morrison, F R; Knight, M W

    1982-10-01

    During the first half of March 1980, an unseasonal outbreak of legionellosis, which involved at least 14 of approximately 1,000 workers, occurred in a 6-month-old office building in San Francisco. An epidemiologic investigation revealed that persons 50 yr of age and older were at increased risk of disease. The outbreak was temporally associated with operation of the building's air conditioning system. In addition, Legionella pneumophila Serogroups 1, 4, and 6 were identified in water samples taken from a rooftop air conditioning cooling tower located directly across the street from an area of recent excavation.

  9. San Francisco and Bay Area, CA, USA

    NASA Technical Reports Server (NTRS)

    1973-01-01

    Although clouds obscure part of the city of San Francisco and the mouth of the Bay (37.5N, 122.0W), many cultural and natural features in the immediate vicinity are obvious. The Bay Bridge which was damaged in the 1989 earthquake, Candlestick Park, San Mateo and Dumbarton Bridges as well as the various colored settling ponds rimming the south end of the Bay, the San Andreas and Calaveras faults and many of the major highways can be seen. Color infrared photography is very useful for haze penetration and greater definition of the imagery as well as vegetation detection, depicted as shades of red.

  10. 8. Photocopy of drawing (from California Historical Society, San Francisco, ...

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

    8. Photocopy of drawing (from California Historical Society, San Francisco, California, Sherman, artist, before 1846) GENERAL VIEW OF MISSION (RIGHT), BARRACKS (TO LEFT OF MISSION) & GENERAL VALLEJO RESIDENCE (CENTER, WITH TOWER) - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  11. Book Buddies. Volunteers Bring Stories to San Francisco's Hospitalized Children.

    ERIC Educational Resources Information Center

    Schneider, Marcia

    This report describes Book Buddies, a volunteer-based outreach project of the San Francisco Public Library, whose goal is to provide reading services and to promote reading aloud to children and their families in San Francisco hospitals and pediatric clinics. The introduction chronicles the need for such a program; offers background information on…

  12. 33 CFR 80.1142 - San Francisco Harbor, CA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false San Francisco Harbor, CA. 80.1142 Section 80.1142 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1142 San Francisco Harbor, CA. A straight...

  13. 33 CFR 80.1142 - San Francisco Harbor, CA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false San Francisco Harbor, CA. 80.1142 Section 80.1142 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1142 San Francisco Harbor, CA. A straight...

  14. 33 CFR 80.1142 - San Francisco Harbor, CA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false San Francisco Harbor, CA. 80.1142 Section 80.1142 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1142 San Francisco Harbor, CA. A straight...

  15. 33 CFR 80.1142 - San Francisco Harbor, CA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false San Francisco Harbor, CA. 80.1142 Section 80.1142 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1142 San Francisco Harbor, CA. A straight...

  16. 33 CFR 80.1142 - San Francisco Harbor, CA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false San Francisco Harbor, CA. 80.1142 Section 80.1142 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1142 San Francisco Harbor, CA. A straight...

  17. Forest conditions in the San Francisco Mountains Forest Reserve, Arizona

    Treesearch

    John B. Leiberg; Theodore F. Rixon; Arthur. Dodwell

    1904-01-01

    On April 12, 1902, President Roosevelt issued a proclamation "for the purpose of consolidating into one reserve the lands heretofore embraced in the San Francisco Mountains Forest Reserves and of including therein the other adjacent lands within the description herein after given." The consolidated area is now known as the San Francisco Mountains Forest...

  18. 33 CFR 165.T11-630 - Safety zone; Giants Enterprises Fireworks Display, San Francisco Bay, San Francisco, CA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety zone; Giants Enterprises Fireworks Display, San Francisco Bay, San Francisco, CA. 165.T11-630 Section 165.T11-630 Navigation and... Areas Eleventh Coast Guard District § 165.T11-630 Safety zone; Giants Enterprises Fireworks Display, San...

  19. Developing Early Warning Indicators for the San Francisco Unified School District. Youth Data Archive Issue Brief

    ERIC Educational Resources Information Center

    John W. Gardner Center for Youth and Their Communities, 2011

    2011-01-01

    San Francisco's Bridge to Success (BtS) initiative brings together the City and County of San Francisco, the San Francisco Unified School District (SFUSD), the City College of San Francisco (CCSF), and key community organizations to promote postsecondary success for underrepresented students. Partners agree that the first step in achieving this…

  20. Shaded Relief of Rio Sao Francisco, Brazil

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This topographic image acquired by SRTM shows an area south of the Sao Francisco River in Brazil. The scrub forest terrain shows relief of about 400 meters (1300 feet). Areas such as these are difficult to map by traditional methods because of frequent cloud cover and local inaccessibility. This region has little topographic relief, but even subtle changes in topography have far-reaching effects on regional ecosystems. The image covers an area of 57 km x 79 km and represents one quarter of the 225 km SRTM swath. Colors range from dark blue at water level to white and brown at hill tops. The terrain features that are clearly visible in this image include tributaries of the Sao Francisco, the dark-blue branch-like features visible from top right to bottom left, and on the left edge of the image, and hills rising up from the valley floor. The San Francisco River is a major source of water for irrigation and hydroelectric power. Mapping such regions will allow scientists to better understand the relationships between flooding cycles, forestation and human influences on ecosystems.

    This shaded relief image was generated using topographic data from the Shuttle Radar Topography Mission. A computer-generated artificial light source illuminates the elevation data to produce a pattern of light and shadows. Slopes facing the light appear bright, while those facing away are shaded. On flatter surfaces, the pattern of light and shadows can reveal subtle features in the terrain. Shaded relief maps are commonly used in applications such as geologic mapping and land use planning.

    The Shuttle Radar Topography Mission (SRTM), launched on February 11, 2000, uses the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. The mission is designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter

  1. Microbial biogeography of San Francisco Bay sediments

    NASA Astrophysics Data System (ADS)

    Lee, J. A.; Francis, C. A.

    2014-12-01

    The largest estuary on the west coast of North America, San Francisco Bay is an ecosystem of enormous biodiversity, and also enormous human impact. The benthos has experienced dredging, occupation by invasive species, and over a century of sediment input as a result of hydraulic mining. Although the Bay's great cultural and ecological importance has inspired numerous surveys of the benthic macrofauna, to date there has been almost no investigation of the microbial communities on the Bay floor. An understanding of those microbial communities would contribute significantly to our understanding of both the biogeochemical processes (which are driven by the microbiota) and the physical processes (which contribute to microbial distributions) in the Bay. Here, we present the first broad survey of bacterial and archaeal taxa in the sediments of the San Francisco Bay. We conducted 16S rRNA community sequencing of bacteria and archaea in sediment samples taken bimonthly for one year, from five sites spanning the salinity gradient between Suisun and Central Bay, in order to capture the effect of both spatial and temporal environmental variation on microbial diversity. From the same samples we also conducted deep sequencing of a nitrogen-cycling functional gene, nirS, allowing an assessment of evolutionary diversity at a much finer taxonomic scale within an important and widespread functional group of bacteria. We paired these sequencing projects with extensive geochemical metadata as well as information about macrofaunal distribution. Our data reveal a diversity of distinct biogeographical patterns among different taxa: clades ubiquitous across sites; clades that respond to measurable environmental drivers; and clades that show geographical site-specificity. These community datasets allow us to test the hypothesis that salinity is a major driver of both overall microbial community structure and community structure of the denitrifying bacteria specifically; and to assess

  2. Shaded Relief of Rio Sao Francisco, Brazil

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This topographic image acquired by SRTM shows an area south of the Sao Francisco River in Brazil. The scrub forest terrain shows relief of about 400 meters (1300 feet). Areas such as these are difficult to map by traditional methods because of frequent cloud cover and local inaccessibility. This region has little topographic relief, but even subtle changes in topography have far-reaching effects on regional ecosystems. The image covers an area of 57 km x 79 km and represents one quarter of the 225 km SRTM swath. Colors range from dark blue at water level to white and brown at hill tops. The terrain features that are clearly visible in this image include tributaries of the Sao Francisco, the dark-blue branch-like features visible from top right to bottom left, and on the left edge of the image, and hills rising up from the valley floor. The San Francisco River is a major source of water for irrigation and hydroelectric power. Mapping such regions will allow scientists to better understand the relationships between flooding cycles, forestation and human influences on ecosystems.

    This shaded relief image was generated using topographic data from the Shuttle Radar Topography Mission. A computer-generated artificial light source illuminates the elevation data to produce a pattern of light and shadows. Slopes facing the light appear bright, while those facing away are shaded. On flatter surfaces, the pattern of light and shadows can reveal subtle features in the terrain. Shaded relief maps are commonly used in applications such as geologic mapping and land use planning.

    The Shuttle Radar Topography Mission (SRTM), launched on February 11, 2000, uses the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. The mission is designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter

  3. San Francisco, San Pablo Bay Area

    NASA Image and Video Library

    1994-09-30

    STS068-244-022 (30 September-11 October 1994) --- (San Francisco, San Pablo Bay Area) Photographed through the Space Shuttle Endeavour's flight deck windows, the heavily populated bay area is featured in this 70mm frame. The relatively low altitude of Endeavour's orbit (115 nautical miles) and the use of a 250mm lens on the Hasselblad camera allowed for capturing detail in features such as the Berkeley Marina (frame center). The region's topography is well depicted with the lowland areas heavily populated and the hills much more sparsely covered. The Oakland Hills in the right lower center appear to be re-vegetated after a devastating fire. The Golden Gate Recreation Area in the upper left also shows heavy vegetation. The three bridges across the main part of the bay and their connecting roads are prominent. Cultural features such as Golden Gate Park and the Presidio contrast with the gray of the city.

  4. Forecasting the Next Great San Francisco Earthquake

    NASA Astrophysics Data System (ADS)

    Rundle, P.; Rundle, J. B.; Turcotte, D. L.; Donnellan, A.; Yakovlev, G.; Tiampo, K. F.

    2005-12-01

    The great San Francisco earthquake of 18 April 1906 and its subsequent fires killed more than 3,000 persons, and destroyed much of the city leaving 225,000 out of 400,000 inhabitants homeless. The 1906 earthquake occurred on a km segment of the San Andreas fault that runs from the San Juan Bautista north to Cape Mendocino and is estimated to have had a moment magnitude m ,l 7.9. Observations of surface displacements across the fault were in the range m. As we approach the 100 year anniversary of this event, a critical concern is the hazard posed by another such earthquake. In this talk we examine the assumptions presently used to compute the probability of occurrence of these earthquakes. We also present the results of a numerical simulation of interacting faults on the San Andreas system. Called Virtual California, this simulation can be used to compute the times, locations and magnitudes of simulated earthquakes on the San Andreas fault in the vicinity of San Francisco. Of particular importance are new results for the statistical distribution of interval times between great earthquakes, results that are difficult or impossible to obtain from a purely field-based approach. We find that our results are fit well under most circumstances by the Weibull statistical distribution, and we compute waiting times to future earthquakes based upon our simulation results. A contrasting approach to the same problem has been adopted by the Working Group on California Earthquake Probabilities, who use observational data combined with statistical assumptions to compute probabilities of future earthquakes.

  5. ASTER Images San Francisco Bay Area

    NASA Image and Video Library

    2000-04-26

    These images of the San Francisco Bay region were acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. Each covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image the Earth for the next 6 years to map and monitor the changing surface of our planet. Upper Left: The color infrared composite uses bands in the visible and reflected infrared. Vegetation is red, urban areas are gray; sediment in the bays shows up as lighter shades of blue. Thanks to the 15 meter (50-foot) spatial resolution, shadows of the towers along the Bay Bridge can be seen. Upper right: A composite of bands in the short wave infrared displays differences in soils and rocks in the mountainous areas. Even though these regions appear entirely vegetated in the visible, enough surface shows through openings in the vegetation to allow the ground to be imaged. Lower left: This composite of multispectral thermal bands shows differences in urban materials in varying colors. Separation of materials is due to differences in thermal emission properties, analogous to colors in the visible. Lower right: This is a color coded temperature image of water temperature, derived from the thermal bands. Warm waters are in white and yellow, colder waters are blue. Suisun Bay in the upper right is fed directly from the cold Sacramento River. As the water flows through San Pablo and San Francisco Bays on the way to the Pacific, the waters warm up. http://photojournal.jpl.nasa.gov/catalog/PIA02605

  6. 27 CFR 9.157 - San Francisco Bay.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... Mountain, California, scale 1:24,000, dated 1956, Photorevised 1980; (25) Half Moon Bay, California, scale... Francisco South, Montara Mountain, Half Moon Bay, San Gregorio, Pigeon Point, Franklin Point, Año Nuevo and...

  7. 27 CFR 9.157 - San Francisco Bay.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Mountain, California, scale 1:24,000, dated 1956, Photorevised 1980; (25) Half Moon Bay, California, scale... Francisco South, Montara Mountain, Half Moon Bay, San Gregorio, Pigeon Point, Franklin Point, Año Nuevo and...

  8. 27 CFR 9.157 - San Francisco Bay.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... Mountain, California, scale 1:24,000, dated 1956, Photorevised 1980; (25) Half Moon Bay, California, scale... Francisco South, Montara Mountain, Half Moon Bay, San Gregorio, Pigeon Point, Franklin Point, Año Nuevo and...

  9. 27 CFR 9.157 - San Francisco Bay.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... Mountain, California, scale 1:24,000, dated 1956, Photorevised 1980; (25) Half Moon Bay, California, scale... Francisco South, Montara Mountain, Half Moon Bay, San Gregorio, Pigeon Point, Franklin Point, Año Nuevo and...

  10. 27 CFR 9.157 - San Francisco Bay.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... Mountain, California, scale 1:24,000, dated 1956, Photorevised 1980; (25) Half Moon Bay, California, scale... Francisco South, Montara Mountain, Half Moon Bay, San Gregorio, Pigeon Point, Franklin Point, Año Nuevo and...

  11. RadNet Air Data From San Francisco, CA

    EPA Pesticide Factsheets

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

  12. 22. Photocopy of photograph (from San Francisco Chronicle Collection) Photographer ...

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

    22. Photocopy of photograph (from San Francisco Chronicle Collection) Photographer unknown, Date unknown SIDE VIEW OF CHURCH - Mission San Miguel Arcangel, Highway 101, San Miguel, San Luis Obispo County, CA

  13. 18. Photocopy of photograph (from De Young Museum, San Francisco, ...

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

    18. Photocopy of photograph (from De Young Museum, San Francisco, CA. c. 1900) Photographer unknown, February 1940 EXTERIOR VIEW FROM NORTHEAST - Mission San Miguel Arcangel, Highway 101, San Miguel, San Luis Obispo County, CA

  14. Salinity and Flow Monitoring in the San Francisco Bay Delta

    EPA Pesticide Factsheets

    This report describes the utility and approximate cost of expanding the salinity water quality monitoring network along the axis of the San Francisco Estuary from Suisun Bay to Rio Vista on the Sacramento River.

  15. 10. Historic American Buildings Survey From Gleason Collection San Francisco ...

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

    10. Historic American Buildings Survey From Gleason Collection San Francisco College for Women Original: About 1884 Re-photo: March 1940 VIEW FROM SOUTHWEST - Mission Nuestra Senora de la Soledad, Soledad, Monterey County, CA

  16. 2. Historic American Buildings Survey National Park Service San Francisco, ...

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

    2. Historic American Buildings Survey National Park Service San Francisco, California Year Built: 1835 Photo Taken: 1939 GENERAL VIEW - Pacific House, 200-222 Calle Principal, Monterey, Monterey County, CA

  17. 24. Historic American Buildings Survey From Gleason Collection San Francisco ...

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

    24. Historic American Buildings Survey From Gleason Collection San Francisco College for Women Original: About 1895 Re-photo: March 1940 CHAPEL - Mission Nuestra Senora de la Soledad, Soledad, Monterey County, CA

  18. The Early History of Psychoanalysis in San Francisco.

    PubMed

    Benveniste, Daniel

    2006-01-01

    The early history of psychoanalysis in San Francisco begins in 1918 and ends in 1953. During those 35 years the San Francisco Bay Area witnessed the awakening of interest in psychoanalysis, the arrival of the European émigré analysts and the emergence of individuals and groups engaging in extraordinarily creative work and doing so in an ecumenical spirit and with a social commitment. This article provides an overview of this illustrious history and the people who participated in it.

  19. 33 CFR 3.55-20 - Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Francisco Bay Marine Inspection Zone and Captain of the Port Zone. 3.55-20 Section 3.55-20 Navigation and..., MARINE INSPECTION ZONES, AND CAPTAIN OF THE PORT ZONES Eleventh Coast Guard District § 3.55-20 Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone. The Sector San...

  20. 33 CFR 3.55-20 - Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Francisco Bay Marine Inspection Zone and Captain of the Port Zone. 3.55-20 Section 3.55-20 Navigation and..., MARINE INSPECTION ZONES, AND CAPTAIN OF THE PORT ZONES Eleventh Coast Guard District § 3.55-20 Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone. The Sector San...

  1. 33 CFR 3.55-20 - Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Francisco Bay Marine Inspection Zone and Captain of the Port Zone. 3.55-20 Section 3.55-20 Navigation and..., MARINE INSPECTION ZONES, AND CAPTAIN OF THE PORT ZONES Eleventh Coast Guard District § 3.55-20 Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone. The Sector San...

  2. 33 CFR 3.55-20 - Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Francisco Bay Marine Inspection Zone and Captain of the Port Zone. 3.55-20 Section 3.55-20 Navigation and..., MARINE INSPECTION ZONES, AND CAPTAIN OF THE PORT ZONES Eleventh Coast Guard District § 3.55-20 Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone. The Sector San...

  3. 33 CFR 3.55-20 - Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Francisco Bay Marine Inspection Zone and Captain of the Port Zone. 3.55-20 Section 3.55-20 Navigation and..., MARINE INSPECTION ZONES, AND CAPTAIN OF THE PORT ZONES Eleventh Coast Guard District § 3.55-20 Sector San Francisco: San Francisco Bay Marine Inspection Zone and Captain of the Port Zone. The Sector San...

  4. Benthic fluxes in San Francisco Bay

    USGS Publications Warehouse

    Hammond, Douglas E.; Fuller, C.; Harmon, D.; Hartman, Blayne; Korosec, M.; Miller, L.G.; Rea, R.; Warren, S.; Berelson, W.; Hager, S.W.

    1985-01-01

    Measurements of benthic fluxes have been made on four occasions between February 1980 and February 1981 at a channel station and a shoal station in South San Francisco Bay, using in situ flux chambers. On each occasion replicate measurements of easily measured substances such as radon, oxygen, ammonia, and silica showed a variability (??1??) of 30% or more over distances of a few meters to tens of meters, presumably due to spatial heterogeneity in the benthic community. Fluxes of radon were greater at the shoal station than at the channel station because of greater macrofaunal irrigation at the former, but showed little seasonal variability at either station. At both stations fluxes of oxygen, carbon dioxide, ammonia, and silica were largest following the spring bloom. Fluxes measured during different seasons ranged over factors of 2-3, 3, 4-5, and 3-10 (respectively), due to variations in phytoplankton productivity and temperature. Fluxes of oxygen and carbon dioxide were greater at the shoal station than at the channel station because the net phytoplankton productivity is greater there and the organic matter produced must be rapidly incorporated in the sediment column. Fluxes of silica were greater at the shoal station, probably because of the greater irrigation rates there. N + N (nitrate + nitrite) fluxes were variable in magnitude and in sign. Phosphate fluxes were too small to measure accurately. Alkalinity fluxes were similar at the two stations and are attributed primarily to carbonate dissolution at the shoal station and to sulfate reduction at the channel station. The estimated average fluxes into South Bay, based on results from these two stations over the course of a year, are (in mmol m-2 d-1): O2 = -27 ?? 6; TCO2 = 23 ?? 6; Alkalinity = 9 ?? 2; N + N = -0.3 ?? 0.5; NH3 = 1.4 ?? 0.2; PO4 = 0.1 ?? 0.4; Si = 5.6 ?? 1.1. These fluxes are comparable in magnitude to those in other temperate estuaries with similar productivity, although the seasonal

  5. Environmental setting of San Francisco Bay

    USGS Publications Warehouse

    Conomos, T.J.; Smith, R.E.; Gartner, J.W.

    1985-01-01

    San Francisco Bay, the largest bay on the California coast, is a broad, shallow, turbid estuary comprising two geographically and hydrologically distinct subestuaries: the northern reach lying between the connection to the Pacific Ocean at the Golden Gate and the confluence of the Sacramento-San Joaquin River system, and the southern reach (herein called South Bay) between the Golden Gate and the southern terminus of the bay. The northern reach is a partially mixed estuary dominated by seasonally varying river inflow, and the South Bay is a tidally oscillating lagoon-type estuary. Freshwater inflows, highest during winter, generate strong estuarine circulation and largely determine water residence times. They also bring large volumes of dissolved and particulate materials to the estuary. Tidal currents, generated by mixed semidiurnal and diurnal tides, mix the water column and, together with river inflow and basin geometry, determine circulation patterns. Winds, which are strongest during summer and during winter storms, exert stress on the bay's water surface, thereby creating large waves that resuspend sediment from the shallow bay bottom and, together with the tidal currents, contribute markedly to the transport of water masses throughout the shallow estuary. ?? 1985 Dr W. Junk Publishers.

  6. The invisible hand in San Francisco.

    PubMed

    Adams, J; Bouvier, L; Davis, C; Gardner, B; Haupt, A; Kent, M; Molajo, D; Merrick, T; Scully, J; Van Der Tak, J

    1986-05-01

    Over 1000 population enthusiasts found their way to San Francisco for the 1986 meetings of the Population Association of America (PAA) April 3-5. 2 pre-meetings included: 1) the Association for Population/Family Planning Libraries and Information Centers-International (APLIC), and 2) the psychosocial workshop. Sexual activity was a major topic of the session on "Fertility: Early and Late." Further investigation of the effects of marriage and fertility on behavior was reviewed in a session entitled "Trends in Household Composition and Living Arrangements." The session "Demography of Crime and Justice" gave the demographic answer to such questions as: Is the crime rate really falling? Opinions in a panel on the future of US international population policy were sharply divided; Agency for International Development representative Alison Rosenberg outlined the re-examination of the Agency's population program that had taken place since the population conference in Mexico City in 1984. The Presidential Address was preceded by the annual awards ceremony. PAA President Paul Demeny focused on an issue that has been at the core of the debate about whether population has good, bad, indifferent, or indeterminate effects on economic development: the extent to which society can entrust the solution of population problems to market forces. This year's PAA meeting echoed growing concern in the population field about low fertility in the more developed world as well as increasing skepticism over the negative consequences of rapid developing country population growth.

  7. [Deafness and mentality in Francisco Goya's paintings].

    PubMed

    Betlejewski, Stanisław; Ossowski, Roman

    2009-01-01

    The famous painter Francisco Goya y Lucientes (1746-1828) suffered during his life one or several diseases, the nature of which has not been determined with certainty. At age of 46, Goya suffered from severe illness that lasted a few months. It caused loss of vision and hearing, tinnitus, dizziness, a right-sides paralysis, weakness and general malaise. Although he recovered from a cerebral stroke which accompanied it, the deafness remained unaltered. The illness divides Goya's artistic life into two great different periods. After in the painter produces his greatest works. The visual experience after the illness was heightened by the exclusion of acoustics stimuli and the artist's talent rose to the highest level. His character became more withdrawn and introspective and his entire vitality was direscted to his painting. Goya's painting became progressively more gloom and satirical during his long convalescence. The artist suffered a stroke at age 73 that again rendered him paralysed on the right side. The precise cause of his illness has long been debated. Ome medical writers have favored the diagnosis of syphilis, some consider the possibility of an exogenous psychosis, and other suggests that the symptoms of the illness are more congruent with heavy metal poisoning, particulary lead. It is interesting to speculate how the Goya's deafness influenced the artist's mentality and the changes of his painting. Interesting is also the problem of the sensory compensation in fact of disturbance of physiological function of one of the senses.

  8. [The five wills of Francisco Xavier Balmis].

    PubMed

    Tuells, José; Duro Torrijos, José Luis

    2012-01-01

    The recent discovery of the testamentary records of Francisco Xavier de Balmis (1753-1819), director of the Royal Philanthropic Expedition of the Vaccine, constitutes a new source material with which to study his biographical profile.Balmis wrote a total of five wills covering the period from 1803-1818 and coinciding with crucial moments in his life.The analysis of these documents has led to interesting observations that confirm Balmis’s personal insecurity before facing the Expedition, his vulnerability when he was stripped of his possessions for joining the royalist cause against Napoleon, the reassurance he felt when his honors and property were restored, or his fortitude in facing the final moments of his life. The documents also reveal that Balmis used his career as a military surgeon as a tool to achieve social prestige, and belie the assumptions of an obscure end. The inventory of his goods confirms his comfortable economic situation and his ability to manage it. The notarial sources are confirmed by this case of Balmis, an official of the Crown, as an appropriate source for the study of urban oligarchies of the Spanish Ancien Régime.

  9. Breeding avifauna of the south San Francisco Bay estuary

    USGS Publications Warehouse

    Gill, Robert E.

    1977-01-01

    San Francisco Bay represents one of the largest estuarine areas on the Pacific Coast of North America. Its open waters, tidal flats, tidal marshes and solar evaporation ponds provide critical foraging, resting and breeding habitat for migratory and resident birds. The avifauna of San Francisco Bay has received considerable attention; however, little of it has been directed toward assessing the overall importance of the Bay as a nesting area. Works by Grinnell and Wythe (1927), Grinnell and Miller (1944) and Sibley (1952) are the only comprehensive studies of San Francisco Bay avifauna. These studies, while major contributions, are broad in scope as they relate to the breeding avifauna of the Bay's estuarine areas. Several studies by Johnston (1955, 1956a, b), Marshall (1948a, b), DeGroot (1927, 1931) and Zucca (1954) have concentrated on the breeding biology of individual species; however, much of the marsh reclamation and Bay fill has occurred since. The present breeding status of many resident and migratory birds is poorly known for San Francisco Bay. Included among these are three rare or endangered forms: California Black Rail, California Clapper Rail and California Least Tern. In addition, some species now found in the area represent recent breeding range extensions. This study, undertaken from March to September 1971 and including a few more recent data, presents a quantitative assessment of the present breeding bird populations in the South San Francisco Bay area.

  10. ASTER Images San Francisco Bay Area

    NASA Technical Reports Server (NTRS)

    2000-01-01

    These images of the San Francisco Bay region were acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. Each covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image the Earth for the next 6 years to map and monitor the changing surface of our planet.

    Upper Left: The color infrared composite uses bands in the visible and reflected infrared. Vegetation is red, urban areas are gray; sediment in the bays shows up as lighter shades of blue. Thanks to the 15 meter (50-foot) spatial resolution, shadows of the towers along the Bay Bridge can be seen.

    Upper right: A composite of bands in the short wave infrared displays differences in soils and rocks in the mountainous areas. Even though these regions appear entirely vegetated in the visible, enough surface shows through openings in the vegetation to allow the ground to be imaged.

    Lower left: This composite of multispectral thermal bands shows differences in urban materials in varying colors. Separation of materials is due to differences in thermal emission properties, analogous to colors in the visible.

    Lower right: This is a color coded temperature image of water temperature, derived from the thermal bands. Warm waters are in white and yellow, colder waters are blue. Suisun Bay in the upper right is fed directly from the cold Sacramento River. As the water flows through San Pablo and San Francisco Bays on the way to the Pacific, the waters warm up.

    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

  11. Community Heavy Metal Exposure, San Francisco, California

    NASA Astrophysics Data System (ADS)

    Chavez, A.; Devine, M.; Ho, T.; Zapata, I.; Bissell, M.; Neiss, J.

    2008-12-01

    Heavy metals are natural elements that generally occur in minute concentrations in the earth's crust. While some of these elements, in small quantities, are vital to life, most are harmful in larger doses. Various industrial and agricultural processes can result in dangerously high concentrations of heavy metals in our environment. Consequently, humans can be exposed to unsafe levels of these elements via the air we breathe, the water and food we consume, and the many products we use. During a two week study we collected numerous samples of sediments, water, food, and household items from around the San Francisco Bay Area that represent industrial, agricultural, and urban/residential settings. We analyzed these samples for Mercury (Hg), Lead (Pb), and Arsenic (As). Our goal was to examine the extent of our exposure to heavy metals in our daily lives. We discovered that many of the common foods and materials in our lives have become contaminated with unhealthy concentrations of these metals. Of our food samples, many exceeded the EPA's Maximum Contaminant Levels (MCL) set for each metal. Meats (fish, chicken, and beef) had higher amounts of each metal than did non-meat items. Heavy metals were also prevalent in varying concentrations in the environment. While many of our samples exceeded the EPA's Sediment Screening Level (SSL) for As, only two other samples surpassed the SSL set for Pb, and zero of our samples exceeded the SSL for Hg. Because of the serious health effects that can result from over-exposure to heavy metals, the information obtained in this study should be used to influence our future dietary and recreational habits.

  12. Sex worker health: San Francisco style.

    PubMed

    Cohan, D; Lutnick, A; Davidson, P; Cloniger, C; Herlyn, A; Breyer, J; Cobaugh, C; Wilson, D; Klausner, J

    2006-10-01

    To describe the characteristics of sex workers accessing care at a peer based clinic in San Francisco and to evaluate predictors of sexually transmitted infections (STI). We conducted an observational study of sex workers at St James Infirmary. Individuals underwent an initial questionnaire, and we offered screening for STI at each clinic visit. We performed univariate, bivariate, and multivariable analyses to assess for predictors of STI in this population. We saw 783 sex workers identifying as female (53.6%), male (23.9%), male to female transgender (16.1%), and other (6.5%). 70% had never disclosed their sex work to a medical provider. Participants represented a wide range of ethnicities, educational backgrounds, and types of sex work. The most common substance used was tobacco (45.8%). Nearly 40% reported current illicit drug use. Over half reported domestic violence, and 36.0% reported sex work related violence. Those screened had gonorrhoea (12.4%), chlamydia (6.8%), syphilis (1.8%), or herpes simplex virus 2 (34.3%). Predictors of STI included African-American race (odds ratio (OR) 3.3), male gender (OR 1.9), and sex work related violence (OR 1.9). In contrast, participants who had only ever engaged in collective sex work were less likely to have an STI (OR 0.4). The majority of sex workers have never discussed their work with a medical provider. Domestic violence is extremely prevalent as is work related violence. Working with other sex workers appears to be protective of STIs. STI prevention interventions should target African-American and male sex workers. Addressing violence in the workplace and encouraging sex workers to work collectively may be effective prevention strategies.

  13. Sex worker health: San Francisco style

    PubMed Central

    Cohan, D; Lutnick, A; Davidson, P; Cloniger, C; Herlyn, A; Breyer, J; Cobaugh, C; Wilson, D; Klausner, J

    2006-01-01

    Objectives To describe the characteristics of sex workers accessing care at a peer based clinic in San Francisco and to evaluate predictors of sexually transmitted infections (STI). Methods We conducted an observational study of sex workers at St James Infirmary. Individuals underwent an initial questionnaire, and we offered screening for STI at each clinic visit. We performed univariate, bivariate, and multivariable analyses to assess for predictors of STI in this population. Results We saw 783 sex workers identifying as female (53.6%), male (23.9%), male to female transgender (16.1%), and other (6.5%). 70% had never disclosed their sex work to a medical provider. Participants represented a wide range of ethnicities, educational backgrounds, and types of sex work. The most common substance used was tobacco (45.8%). Nearly 40% reported current illicit drug use. Over half reported domestic violence, and 36.0% reported sex work related violence. Those screened had gonorrhoea (12.4%), chlamydia (6.8%), syphilis (1.8%), or herpes simplex virus 2 (34.3%). Predictors of STI included African‐American race (odds ratio (OR) 3.3), male gender (OR 1.9), and sex work related violence (OR 1.9). In contrast, participants who had only ever engaged in collective sex work were less likely to have an STI (OR 0.4). Conclusions The majority of sex workers have never discussed their work with a medical provider. Domestic violence is extremely prevalent as is work related violence. Working with other sex workers appears to be protective of STIs. STI prevention interventions should target African‐American and male sex workers. Addressing violence in the workplace and encouraging sex workers to work collectively may be effective prevention strategies. PMID:16854996

  14. 41. Historic American Buildings Survey San Francisco CallBulletin Library San ...

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

    41. Historic American Buildings Survey San Francisco Call-Bulletin Library San Francisco, California INTERIOR VIEW OF CHURCH BEFORE RESTORATION - 1934 - Mission San Carlos Borromeo, Rio Road & Lausen Drive, Carmel-by-the-Sea, Monterey County, CA

  15. 76 FR 45421 - Drawbridge Operation Regulation; China Basin, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-29

    ... necessary to allow the public to cross the bridge to participate in the scheduled San Francisco Marathon, a..., 2011, to allow participants in the San Francisco Marathon to cross the bridge during the event. This...

  16. 78 FR 31414 - Drawbridge Operation Regulation; China Basin, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-24

    ... cross the bridge to participate in the scheduled San Francisco Marathon, a community event. This... participants in the San Francisco Marathon to cross the bridge during the event. This temporary deviation has...

  17. San Francisco Bay, California as seen from STS-59

    NASA Technical Reports Server (NTRS)

    1994-01-01

    San Francisco Bay as seen from STS-59. View is oriented with the sea up. The delta of the combined Sacramento and San Joaquin Rivers occupies the foreground with San Francisco Bay in the middle distance, then the Pacific Ocean. Variations in water color caused both by sediment load and by wind streaking strike the eye. Man-made features dominate this scene. The Lafayette/Concord complex is left of the bay head, Vallejo is to the right, the Berkeley/Oakland complex rims the shoreline of the main bay, and San Francisco fills the peninsula beyond. Salt-evaporation ponds contain differently-colored algae depending on salinity. The low altitude (less than 120 nautical miles) and unusually-clear air combine to provide unusually-strong green colors in this Spring scene.

  18. Survey of SLAC lands for San Francisco garter snake

    SciTech Connect

    Seib, R.L.; Papenfuss, T.J.

    1981-11-01

    The San Francisco garter snake (Thamnophis sirtalis tetrataenia) is protected under the endangered species act by the US Fish and Wildlife Service and the California Department of Fish and Game. The snake is restricted to the San Francisco peninsula and all known populations are in San Mateo County. In southeastern San Mateo County and northwestern Santa Clara County T. s. tetrataenia intergrades with T. s. infernalis. The Stanford Linear Accelerator Center (SLAC) lands are located in this area of intergradation. SLAC contracted Robert Seib and Ted Papenfuss to survey SLAC lands during September and early November 1981, to determine the possibility of occurrence of the San Francisco garter snake on their lands. Results of this investigation and management recommendations are presented here.

  19. What is causing the phytoplankton increase in San Francisco Bay?

    USGS Publications Warehouse

    Cloern, J.E.; Jassby, A.D.; Schraga, T.S.; Dallas, K.L.

    2006-01-01

    The largest living component of San Francisco Bay is the phytoplankton, a suspension of microscopic cells that convert sunlight energy into new living biomass through the same process of photosynthesis used by land plants. This primary production is the ultimate source of food for clams, zooplankton, crabs, sardines, halibut, sturgeon, diving ducks, pelicans, and harbor seals. From measurements made in 1980, we estimated that phytoplankton primary production in San Francisco Bay was about 200,000 tons of organic carbon per year (Jassby et al. 1993). This is equivalent to producing the biomass of 5500 adult humpback whales, or the calories to feed 1.8 million people. These numbers may seem large, but primary production in San Francisco Bay is low compared to many other nutrient-enriched estuaries.

  20. San Francisco Bay, California as seen from STS-59

    NASA Technical Reports Server (NTRS)

    1994-01-01

    San Francisco Bay as seen from STS-59. View is oriented with the sea up. The delta of the combined Sacramento and San Joaquin Rivers occupies the foreground with San Francisco Bay in the middle distance, then the Pacific Ocean. Variations in water color caused both by sediment load and by wind streaking strike the eye. Man-made features dominate this scene. The Lafayette/Concord complex is left of the bay head, Vallejo is to the right, the Berkeley/Oakland complex rims the shoreline of the main bay, and San Francisco fills the peninsula beyond. Salt-evaporation ponds contain differently-colored algae depending on salinity. The low altitude (less than 120 nautical miles) and unusually-clear air combine to provide unusually-strong green colors in this Spring scene.

  1. San Francisco Bay, California as seen from STS-59

    NASA Image and Video Library

    1994-04-14

    STS059-213-009 (9-20 April 1994) --- San Francisco Bay. Orient with the sea up. The delta of the combined Sacramento and San Joaquin Rivers occupies the foreground, San Francisco Bay the middle distance, and the Pacific Ocean the rest. Variations in water color caused both by sediment load and by wind streaking strike the eye. Man-made features dominate this scene. The Lafayette/Concord complex is left of the bay head, Vallejo is to the right, the Berkeley/Oakland complex rims the shoreline of the main bay, and San Francisco fills the peninsula beyond. Salt-evaporation ponds contain differently-colored algae depending on salinity. The low altitude (less than 120 nautical miles) and unusually-clear air combine to provide unusually-strong green colors in this Spring scene. Hasselblad camera.

  2. Developing Alternative Placement Criteria for English Courses at City College of San Francisco. Issue Brief

    ERIC Educational Resources Information Center

    Castrechini, Sebastian

    2013-01-01

    Recognizing the need to improve postsecondary access and success for underrepresented populations, the San Francisco Unified School District (SFUSD), City College of San Francisco (CCSF), the City and County of San Francisco, and key community organizations formed the Bridge to Success initiative in 2009. The John W. Gardner Center for Youth and…

  3. 75 FR 65985 - Safety Zone: Epic Roasthouse Private Party Firework Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-27

    ... off Epic Roasthouse Restaurant, San Francisco, CA during a fireworks display in support of the Epic... Restaurant, San Francisco, CA. The fireworks display is meant for entertainment purposes. This safety zone is... Epic Roasthouse Restaurant, San Francisco, CA. The fireworks launch site will be located in position 37...

  4. 33 CFR 165.1192 - Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zones; Waters surrounding San Francisco International Airport and Oakland International Airport, San Francisco Bay... Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

  5. 33 CFR 165.1192 - Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zones; Waters surrounding San Francisco International Airport and Oakland International Airport, San Francisco Bay... Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

  6. 77 FR 73311 - Special Local Regulation and Safety Zone; America's Cup Sailing Events, San Francisco, CA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-10

    ... waters of San Francisco Bay adjacent to the City of San Francisco waterfront in the vicinity of the... access to pier space and facilities along the City of San Francisco waterfront and to minimize other...-September 23, 2013). An image illustrating the location of the transit zone is available in the docket....

  7. The Health, Mobility & Safety Lab at San Francisco State University.

    ERIC Educational Resources Information Center

    Yee, Darlene; Melichar, Joseph F.

    The purpose of this research project at San Francisco State University was to develop and evaluate integrated assessment and intervention strategies to locate the "at risk" older driver and remediate deficits in knowledge or skills about driving and traffic safety. The identification of the "at risk" older driver should suggest…

  8. Helical grip for the cable cars of San Francisco

    NASA Technical Reports Server (NTRS)

    Peyran, R. J.

    1979-01-01

    A helical cable car grip to minimize high maintenance costs of San Francisco's cable car operation is presented. The grip establishes a rolling contact between the cable and grip to reduce sliding friction and associated cable wear. The design, development, and testing of the helical cable car grip are described.

  9. Cultural Factors Related to Smoking in San Francisco's Irish Bars

    ERIC Educational Resources Information Center

    Satterlund, Travis D.; Antin, Tamar M. J.; Lee, Juliet P.; Moore, Roland S.

    2009-01-01

    California's Smoke-Free Workplace Act was extended to include bars in 1998. While the majority of bars in the state have become smoke free, in many bars patrons and staff continue to smoke despite the law. The authors present findings from a study which assessed cultural factors related to continued smoking in bars in the city of San Francisco. In…

  10. VIEW OF PELTON WATER WHEEL COMPANY (SAN FRANCISCO) TURBINE: SPEED ...

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

    VIEW OF PELTON WATER WHEEL COMPANY (SAN FRANCISCO) TURBINE: SPEED 225 RPM, 17,500 HP. PHOTO BY JET LOWE, HAER, 1995. (Note: the dark hole in the concrete column to the left is from a tear in the negative.) - Elwha River Hydroelectric System, Glines Hydroelectric Dam & Plant, Port Angeles, Clallam County, WA

  11. A Water Quality Study: Heron's Head Park, San Francisco, California

    NASA Astrophysics Data System (ADS)

    Li, A.; Wu, K.; Neiss, J.

    2007-12-01

    Heron's Head Park, formerly known as Pier 98, is a 24-acre restored wetland, owned and operated by the Port of San Francisco and situated at the base of the Hunter's Point Power Plant. Heron's Head is a unique environment that is built on landfill and is now a thriving marsh maintained primarily by youth and community volunteers. Adjacent to the park stands a PG&E power plant (closed May 2006), a county waste transfer station, and a combined sewer overflow (CSO) pipe. The park is bordered by San Francisco Bay on the north, east and south sides of the park. We examined the levels of ammonia, nitrite, nitrate, phosphate and fecal coliform at nine sites around the park. Utilizing historical data from other San Francisco Bay sites and other similar estuarine settings in California, we assessed the health of the Bay waters surrounding the park. We found the levels of ammonia, nitrate, nitrite and phosphates to be within the parameters of historical San Francisco Bay data and similar to settings such as Elkhorn Slough, Tomales Bay and Tijuana Estuary. In our study we did find a potential hazard to human health. Fecal coliform concentrations in waters that border the park range from 340 MPN/100 mL - 24,000 MPN/100 mL. This level significantly exceeds Environmental Protection Agency recommendations of 300 MPN/100 mL for human contact with water.

  12. Cultural Factors Related to Smoking in San Francisco's Irish Bars

    ERIC Educational Resources Information Center

    Satterlund, Travis D.; Antin, Tamar M. J.; Lee, Juliet P.; Moore, Roland S.

    2009-01-01

    California's Smoke-Free Workplace Act was extended to include bars in 1998. While the majority of bars in the state have become smoke free, in many bars patrons and staff continue to smoke despite the law. The authors present findings from a study which assessed cultural factors related to continued smoking in bars in the city of San Francisco. In…

  13. Ethnicity and Phonetic Variation in a San Francisco Neighborhood

    ERIC Educational Resources Information Center

    Hall-Lew, Lauren

    2009-01-01

    This dissertation advances research in sociolinguistics by analyzing phonetic variation in a majority Asian American community in San Francisco, California. As one of the first community studies focusing on Asian Americans in an urban US context, this work speaks to ongoing discussions about speaker ethnicity, phonetic variation, and regional…

  14. Late Holocene Marsh Expansion in Southern San Francisco Bay, California

    EPA Science Inventory

    Currently, the largest tidal wetlands restoration project on the US Pacific Coast is being planned and implemented in southern San Francisco Bay; however, knowledge of baseline conditions of salt marsh extent in the region prior to European settlement is limited. Here, analysis o...

  15. Working Paper for the Revision of San Francisco's Cable Franchise.

    ERIC Educational Resources Information Center

    San Francisco Public Library, CA. Video Task Force.

    Ideas are presented for the revision of San Francisco's cable franchise. The recommendations in the report are based upon national research of library and urban use of cable communications and are designed to help the city's present and future cable franchises to comply with the regulations of the Federal Communications Commission by March 31,…

  16. Observations from moored current meters in San Francisco Bay, 1978

    USGS Publications Warehouse

    Gartner, Jeffrey W.; Cheng, Ralph T.

    1981-01-01

    Current-meter data collected at eight stations in the San Francisco Bay estuarine system between August 1978 and December 1978 are compiled in this report. The measurements include current speed and direction, and water temperature and salinity (computed from conductivity and temperature). Data are presented in graphical format with each parameter plotted separately.

  17. 33 CFR 161.50 - Vessel Traffic Service San Francisco.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Vessel Traffic Service San... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY VESSEL TRAFFIC MANAGEMENT Vessel Traffic Service and Vessel Movement Reporting System Areas and Reporting Points § 161.50 Vessel Traffic Service San Francisco. The VTS...

  18. 33 CFR 161.50 - Vessel Traffic Service San Francisco.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Vessel Traffic Service San... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY VESSEL TRAFFIC MANAGEMENT Vessel Traffic Service and Vessel Movement Reporting System Areas and Reporting Points § 161.50 Vessel Traffic Service San Francisco. The VTS...

  19. 33 CFR 161.50 - Vessel Traffic Service San Francisco.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Vessel Traffic Service San... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY VESSEL TRAFFIC MANAGEMENT Vessel Traffic Service and Vessel Movement Reporting System Areas and Reporting Points § 161.50 Vessel Traffic Service San Francisco. The VTS...

  20. 33 CFR 161.50 - Vessel Traffic Service San Francisco.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Vessel Traffic Service San... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY VESSEL TRAFFIC MANAGEMENT Vessel Traffic Service and Vessel Movement Reporting System Areas and Reporting Points § 161.50 Vessel Traffic Service San Francisco. The VTS...

  1. 33 CFR 161.50 - Vessel Traffic Service San Francisco.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Vessel Traffic Service San... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY VESSEL TRAFFIC MANAGEMENT Vessel Traffic Service and Vessel Movement Reporting System Areas and Reporting Points § 161.50 Vessel Traffic Service San Francisco. The VTS...

  2. Solar for Your Present Home. San Francisco Bay Area Edition.

    ERIC Educational Resources Information Center

    Barnaby, Charles S.; And Others

    This publication provides information about present uses of solar energy for space, water, and swimming pool heating that are practical for the San Francisco Bay area. It attempts to provide interested persons with the information needed to make decisions regarding installations of solar heating systems. The point of view taken is that any…

  3. Ethnicity and Phonetic Variation in a San Francisco Neighborhood

    ERIC Educational Resources Information Center

    Hall-Lew, Lauren

    2009-01-01

    This dissertation advances research in sociolinguistics by analyzing phonetic variation in a majority Asian American community in San Francisco, California. As one of the first community studies focusing on Asian Americans in an urban US context, this work speaks to ongoing discussions about speaker ethnicity, phonetic variation, and regional…

  4. Late Holocene Marsh Expansion in Southern San Francisco Bay, California

    EPA Science Inventory

    Currently, the largest tidal wetlands restoration project on the US Pacific Coast is being planned and implemented in southern San Francisco Bay; however, knowledge of baseline conditions of salt marsh extent in the region prior to European settlement is limited. Here, analysis o...

  5. San Francisco Bay Water Quality Improvement Fund RFP Webinar Registration

    EPA Pesticide Factsheets

    EPA Region 9 is hosting a free webinar to provide a detailed review of the FY 2017 San Francisco Bay Water Quality Improvement Fund RFP and help answer your proposal submittal questions.Date: Thursday, April 20, 2017Time: 2 PM – 3:30 PM Pacific

  6. 1906 Letter to the San Francisco Health Department

    ERIC Educational Resources Information Center

    Schmachtenberg, Kristin

    2006-01-01

    On Wednesday, April 18, 1906, an earthquake, measuring 7.8 on the Richter magnitude scale and lasting 48 seconds, erupted along the San Andreas fault with a flash point originating in the San Francisco Bay area. The force of the earthquake tore apart buildings and roads, causing water and gas mains to twist and break. The resulting effects of the…

  7. Francisco Martinez de Castrillo: An Early Spanish Author.

    PubMed

    Castro-Nunez, Jaime

    Francisco Martinez de Castrillo was a pioneer Spanish dental author who wrote and published Coloquio Breve y Compendioso Sobre la Materia de la Dentadura y Maravillosa Obra de la Boca, the first book published ever in the Spanish language. However, his life and work is largely unknown to the history of the dental profession. Copyright American Academy of the History of Dentistry.

  8. The San Francisco Joint Institutional Transportation Systems Management Program.

    ERIC Educational Resources Information Center

    Fink, Ira; LaPointe, Robert

    1981-01-01

    Transportation systems management (TSM) programs are discussed, particularly the 1977 program of the University of California, San Francisco, which led to traffic reduction and improved vehicle flow. The city's implementation plan for a similar TSM program for 14 educational institutions and hospitals is described. (MLW)

  9. 1906 Letter to the San Francisco Health Department

    ERIC Educational Resources Information Center

    Schmachtenberg, Kristin

    2006-01-01

    On Wednesday, April 18, 1906, an earthquake, measuring 7.8 on the Richter magnitude scale and lasting 48 seconds, erupted along the San Andreas fault with a flash point originating in the San Francisco Bay area. The force of the earthquake tore apart buildings and roads, causing water and gas mains to twist and break. The resulting effects of the…

  10. Solar for Your Present Home. San Francisco Bay Area Edition.

    ERIC Educational Resources Information Center

    Barnaby, Charles S.; And Others

    This publication provides information about present uses of solar energy for space, water, and swimming pool heating that are practical for the San Francisco Bay area. It attempts to provide interested persons with the information needed to make decisions regarding installations of solar heating systems. The point of view taken is that any…

  11. Students on Academic Probation at City College of San Francisco.

    ERIC Educational Resources Information Center

    City Coll. of San Francisco, CA. Office of Institutional Research, Planning and Grants.

    This document discusses students on academic probation in City College of San Francisco as of Spring 2002. During any given semester, 9-10% of students are on academic probation. A majority of students on academic probation are men. Higher numbers of African American (17%) and Filipino (17%) students were on academic probation rather than Whites…

  12. San Francisco Bay test case for 3-D model verification

    USGS Publications Warehouse

    Smith, Peter E.

    1994-01-01

    This paper describes a field test case for 3-D hydrodynamic model verification using data from Carquinez Strait in San Francisco Bay, California. It will be disseminated by the ASCE Computational Hydraulics task committee on 3-D Free-Surface Hydrodynamic Model Verifications during late 1994.

  13. Auckland--New Zealand's Los Angeles or San Francisco?

    ERIC Educational Resources Information Center

    Bogunovich, Dushko

    1995-01-01

    Compares Auckland (New Zealand) with San Francisco (California) in terms of topographical structure, geographic location, and urban development. Both cities contain striking similarities. Maintains that Auckland can become a world-class city renowned for its beauty if developers and government work in tandem. (MJP)

  14. Observations from remote weather stations in San Francisco Bay, California

    USGS Publications Warehouse

    Gartner, J.W.; Cheng, R.T.

    1983-01-01

    Weather data collected at three remote weather stations in the San Francisco Bay estuarine system between November 1979 and September 1981 are compiled in this report. Measurements include average and maximum wind speed, wind direction, air temperature, atmospheric pressure, and irradiance. Data are presented in time-series plots with each graph covering one calendar month. Daily averages of all measurements are tabulated.

  15. Asian American Students: A Look at San Francisco State.

    ERIC Educational Resources Information Center

    Okutsu, James K.

    The attitudes of American Asian students at San Francisco State University toward their education were studied. Responses were obtained from 585 students who were enrolled in Asian American Studies classes in spring 1986. Sixty percent of the sample were of Chinese ancestry, 20% were Filipino, and 20% were other Asian (including Japanese, Korean,…

  16. 76 FR 19519 - Intent To Prepare an Environmental Impact Statement for the Downtown San Francisco Ferry Terminal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-07

    ... Francisco Ferry Terminal Expansion Project in the City and County of San Francisco, CA AGENCY: Federal... Downtown San Francisco Ferry Terminal at the Port of San Francisco Ferry Building. The proposed project.... The project expands the number of ferry gates and improves ferry patron circulation, boarding, and...

  17. Polychlorinated biphenyls (PCBs) in San Francisco Bay.

    PubMed

    Davis, J A; Hetzel, F; Oram, J J; McKee, L J

    2007-09-01

    San Francisco Bay is facing a legacy of polychlorinated biphenyls (PCBs) spread widely across the land surface of the watershed, mixed deep into the sediment of the Bay, and contaminating the Bay food web to a degree that poses health risks to humans and wildlife. In response to this persistent problem, water quality managers are establishing a PCB total maximum daily load (TMDL) and implementation plan to accelerate the recovery of the Bay from decades of PCB contamination. This article provides a review of progress made over the past 15 years in managing PCBs and understanding their sources, pathways, fate, and effects in the Bay, and highlights remaining information needs that should be addressed in the next 10 years. The phaseout of PCBs during the 1970s and the 1979 federal ban on sale and production led to gradual declines from the 1970s to the present. However, 25 years after the ban, PCB concentrations in some Bay sport fish today are still more than ten times higher than the threshold of concern for human health. Without further management action it appears that the general recovery of the Bay from PCB contamination will take many more decades. PCB concentrations in sport fish were, along with mercury, a primary cause of a consumption advisory for the Bay and the consequent classification of the Bay as an impaired water body. Several sources of information indicate that PCB concentrations in the Bay may also be high enough to adversely affect wildlife, including rare and endangered species. The greater than 90% reduction in food web contamination needed to meet the targets for protection of human health would likely also generally eliminate risks to wildlife. PCB contamination in the Bay is primarily associated with industrial areas along the shoreline and in local watersheds. Strong spatial gradients in PCB concentrations persist decades after the release of these chemicals to Bay Area waterways. Through the TMDL process, attention is being more sharply

  18. Sand waves at the mouth of San Francisco Bay, California

    USGS Publications Warehouse

    Gibbons, Helen; Barnard, Patrick L.

    2007-01-01

    The U.S. Geological Survey; California State University, Monterey Bay; U.S. Army Corps of Engineers; National Oceanic and Atmospheric Administration; and Center for Integrative Coastal Observation, Research and Education partnered to map central San Francisco Bay and its entrance under the Golden Gate Bridge using multibeam echosounders. View eastward, through the Golden Gate into central San Francisco Bay. Depth of sea floor color coded: red (less than 10 m deep) to purple (more than 100 m deep). Land from USGS digital orthophotographs (DOQs) overlaid on USGS digital elevation models (DEMs). Sand waves in this view average 6 m in height and 80 m from crest to crest. Golden Gate Bridge is about 2 km long. Vertical exaggeration is approximately 4x for sea floor, 2x for land.

  19. Sand waves at the mouth of San Francisco Bay, California

    USGS Publications Warehouse

    Barnard, Patrick L.; Hanes, Daniel M.; Kvitek, Rikk G.; Iampietro, Pat J.

    2006-01-01

    A multibeam bathymetric survey that produced unprecedented high resolution images of the mouth of San Francisco Bay was conducted in 2004 and 2005. The survey, performed over forty-four days by the Seafloor Mapping Lab at California State University, Monterey Bay, consisted of 1,138 track lines, 1.1 billion soundings, and covered an area of 154 km2 (60 mi2). The goals of this survey were to analyze sediment transport pathways at the mouth of San Francisco Bay and to calculate bathymetric change since the last survey was completed in 1956. The survey showed that significant bathymetric changes have occurred over the past 50 years. It also revealed that the study area contains sand waves that are among the largest and bedform morphologies that are among the most varied in the world. This set of five sheets shows views of the sand waves on the seafloor from different perspectives along with descriptive text.

  20. Aggregate Settling Velocities in San Francisco Estuary Margins

    NASA Astrophysics Data System (ADS)

    Allen, R. M.; Stacey, M. T.; Variano, E. A.

    2015-12-01

    One way that humans impact aquatic ecosystems is by adding nutrients and contaminants, which can propagate up the food web and cause blooms and die-offs, respectively. Often, these chemicals are attached to fine sediments, and thus where sediments go, so do these anthropogenic influences. Vertical motion of sediments is important for sinking and burial, and also for indirect effects on horizontal transport. The dynamics of sinking sediment (often in aggregates) are complex, thus we need field data to test and validate existing models. San Francisco Bay is well studied and is often used as a test case for new measurement and model techniques (Barnard et al. 2013). Settling velocities for aggregates vary between 4*10-5 to 1.6*10-2 m/s along the estuary backbone (Manning and Schoellhamer 2013). Model results from South San Francisco Bay shoals suggest two populations of settling particles, one fast (ws of 9 to 5.8*10-4 m/s) and one slow (ws of < 1*10-7 to 1.4*10-5 m/s) (Brand et al. 2015). While the open waters of San Francisco Bay and other estuaries are well studied and modeled, sediment and contaminants often originate from the margin regions, and the margins remain poorly characterized. We conducted a 24 hour field experiment in a channel slough of South San Francisco Bay, and measured settling velocity, turbulence and flow, and suspended sediment concentration. At this margin location, we found average settling velocities of 4-5*10-5 m/s, and saw settling velocities decrease with decreasing suspended sediment concentration. These results are consistent with, though at the low end of, those seen along the estuary center, and they suggest that the two population model that has been successful along the shoals may also apply in the margins.

  1. Port and Waterways Safety Assessment Workshop Report: San Francisco

    DTIC Science & Technology

    2008-08-01

    Sacramento and San Joaquin Rivers, Mandeville Island, and the ports of Sacramento and Stockton The PAWSA San Francisco participants judged that additional...Carquinez Straits • The navigable portions of the Sacramento and San Joaquin Rivers in The Delta, including the Ports of Sacramento and Stockton...Oakland • Port of Benecia through Carquinez Straits • The Delta, including the convergence of the Sacramento and San Joaquin Rivers, Mandeville Island

  2. Ice, quakes, and a wobble shake San Francisco

    SciTech Connect

    Kerr, R.A.

    1995-01-06

    The fall meeting of the American Geophysical Union (AGU) in San Francisco last month was bumped to the Moscone Center while the Civic Auditorium, its venue in past years, was being reinforced against earthquakes. And that may have been fitting, given the meeting`s focus on sudden events in Earth history; the first moments of fault rupture, repeated outbursts of icebergs during the last ice age, and a shift in the seasons in the middle of this century.

  3. The earthquake educational institute at San Francisco State University

    USGS Publications Warehouse

    Sullivan, R.; Pestrong, R.; Strongin, H.

    1980-01-01

    The Earthquake Educational Institute was established in 1978 at San Francisco State University under a grant from the U.S National Science Foundation. The goal of the Institute is to develop earthquake-related curricula for use in elementary and secondary schools in the hope that, by educating students about earthquakes, they will be better prepared for the disruptions associated with a major quake. To date, about 140 elementary and secondary school teachers and administrators have enrolled in the program. 

  4. Assessing urban forest effects and values, San Francisco's urban forest

    Treesearch

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

    2007-01-01

    An analysis of trees in San Francisco, CA reveals that this city has about 669,000 trees with canopies that cover 11.9 percent of the area. The most common tree species are blue gum eucalyptus, Monterey pine, and Monterey cypress. The urban forest currently stores about 196,000 tons of carbon valued at $3.6 million. In addition, these trees remove about 5,200 tons of...

  5. Contaminant levels in fish tissue from San Francisco Bay

    SciTech Connect

    Fairey, R.; Taberski, K.

    1995-12-31

    Edible fish species were collected from thirteen locations throughout San Francisco Bay, during the spring of 1994, for determination of contaminants levels in muscle tissue. Species collected included white croaker, surfperch, leopard and brown smoothhound sharks, striped bass, white sturgeon and halibut Sixty six composite tissue samples were analyzed for the presence of PAHs, PCBs, pesticides, trace elements and dioxin/furans. The US EPA approach to assessing chemical contaminant data for fish tissue consumption was used for identifying the primary chemicals of concern. Six chemicals or chemical groups were found to exceed screening levels established using the US EPA approach. PCBs (as total Aroclors) exceeded the screening level of 3 ppb in all sixty six tissue samples, with the highest concentrations (638 ppb) found near San Francisco`s industrial areas. Mercury was elevated (> 0.14 ppm) in forty of the sixty-six samples with the highest levels (1.26 ppm) occurring in shark muscle tissues. Concentrations of the organochlorine pesticides dieldrin, total chlordanes and total DDTs exceeded screening levels in a number of samples. Dioxin/furans (as TEQs) were elevated (above 0.15 ppt) in 16 of the 19 samples analyzed. Fish with high lipid content (croaker and surfperch) in their muscle tissue generally exhibited higher contaminant levels while fish with low lipid levels (halibut and shark) exhibited lower organic contaminant levels. Tissue samples taken from North Bay stations most often exhibited high levels of chemical contamination. The California Office of Health Hazard Assessment is currently evaluating the results of this study and has issued an interim Health Advisory concerning the human consumption of fish tissue from San Francisco Bay.

  6. Groundwater quality in the San Francisco Bay groundwater basins, California

    USGS Publications Warehouse

    Parsons, Mary C.; Kulongoski, Justin T.; Belitz, Kenneth

    2013-01-01

    Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to groundwater-quality information. Selected groundwater basins of the San Francisco Bay area constitute one of the study units being evaluated.

  7. Ice, quakes, and a wobble shake san francisco.

    PubMed

    Kerr, R A

    1995-01-06

    The fall meeting of the American Geophysical Union (AGU) in San Francisco last month was bumped to the Moscone Center while the Civic Auditorium, its venue in past years, was being reinforced against earthquakes. And that may have been fitting, given the meeting's focus on sudden events in Earth history: the first moments of fault rupture, repeated outbursts of icebergs during the last ice age, and a shift in the seasons in the middle of this century.

  8. Assessment of Dredged Material Toxicity in San Francisco Bay

    DTIC Science & Technology

    1990-11-01

    bio- assay with the copepod Tigriopus californicus . Reproduction, measured as the total number of young produced, was evaluated in copepods exposed...there were no sig- nificant differences in copepod reproduction. The effects of elevated hydro- gen sulfide concentrations in Islais Waterways...sediments may have affected the observed response in copepod reproduction. A number of field observations have been reported which suggest that San Francisco

  9. Agricultural and Ranching area, Rio Sao Francisco, Brazil

    NASA Technical Reports Server (NTRS)

    1990-01-01

    This agricultural and Ranching area, Rio Sao Francisco, Brazil (13.0S, 43.5W) has been under study for several years. See scene STS-31-92-045 for comparison. This area has many small single family subsistence farms, large square and rectangular commercial farms and pastures for livestock grazing. Over the several years of observation, the number and size of farms has increased and center-pivot, swing-arm irrigation systems have been installed.

  10. Trace Metal and Nutrient Cycling in San Francisco Bay

    DTIC Science & Technology

    1998-09-30

    interest in the cycling of contaminant metals and the role of benthic macrofauna in the Bay (especially the invasive species such as Potamocorbula) but...potential role of benthic macrofauna in collaboration with Dr. Jan Thompson (USGS/WRD) and are working with her to improve the chamber design as...study of South San Francisco Bay. In addition, we also included an objective to increase our understanding of the direct influence of benthic

  11. Microbial diversity in restored wetlands of San Francisco Bay

    SciTech Connect

    Theroux, Susanna; Hartman, Wyatt; He, Shaomei; Tringe, Susannah

    2013-12-09

    Wetland ecosystems may serve as either a source or a sink for atmospheric carbon and greenhouse gases. This delicate carbon balance is influenced by the activity of belowground microbial communities that return carbon dioxide and methane to the atmosphere. Wetland restoration efforts in the San Francisco Bay-Delta region may help to reverse land subsidence and possibly increase carbon storage in soils. However, the effects of wetland restoration on microbial communities, which mediate soil metabolic activity and carbon cycling, are poorly studied. In an effort to better understand the underlying factors which shape the balance of carbon flux in wetland soils, we targeted the microbial communities in a suite of restored and historic wetlands in the San Francisco Bay-Delta region. Using DNA and RNA sequencing, coupled with greenhouse gas monitoring, we profiled the diversity and metabolic potential of the wetland soil microbial communities along biogeochemical and wetland age gradients. Our results show relationships among geochemical gradients, availability of electron acceptors, and microbial community composition. Our study provides the first genomic glimpse into microbial populations in natural and restored wetlands of the San Francisco Bay-Delta region and provides a valuable benchmark for future studies.

  12. Merchandising of cigarettes in San Francisco pharmacies: 27 years later.

    PubMed

    Eule, B; Sullivan, M K; Schroeder, S A; Hudmon, K S

    2004-12-01

    To estimate changes since 1976 in the proportion of San Francisco pharmacies that sell cigarettes and to characterise the advertising of cigarettes and the merchandising of non-prescription nicotine replacement therapy (NRT) products in these retail establishments. 100 randomly selected San Francisco pharmacies were visited in 2003. Pharmacies were characterised based on the sale of cigarettes, advertising for cigarettes, and the merchandising of non-prescription NRT products. In 2003, 61% of pharmacies sold cigarettes, a significant decrease compared to 89% of pharmacies selling cigarettes in 1976 (p < 0.001); 84% of pharmacies selling cigarettes also displayed cigarette advertising. Non-prescription NRT products were stocked by 78% of pharmacies, and in 55% of pharmacies selling cigarettes, the NRT products were stocked immediately adjacent to the cigarettes. Since 1976, there has been a decline in the overall proportion of pharmacies in San Francisco that sell cigarettes yet most pharmacies, particularly traditional chain pharmacies, continue to merchandise the primary known risk factor for death in the USA.

  13. Landslide risk in the San Francisco Bay region

    USGS Publications Warehouse

    Coe, J.A.; Crovelli, R.A.

    2008-01-01

    We have used historical records of damaging landslides triggered by rainstorms, and a newly developed Probabilistic Landslide Assessment Cost Estimation System (PLACES), to estimate the numbers and direct costs of future landslides in the San Francisco Bay region. The estimated annual cost of future landslides in the entire region is about US $15 million (year 2000 $). The estimated annual cost is highest for San Mateo County ($3.32 million) and lowest for Solano County ($0.18 million). Normalizing costs by dividing by the percentage of land area with slopes equal or greater than about 10° indicates that San Francisco County will have the highest cost per square km ($7,400), whereas Santa Clara County will have the lowest cost per square km ($230). These results indicate that the San Francisco Bay region has one of the highest levels of landslide risk in the United States. Compared to landslide cost estimates from the rest of the world, the risk level in the Bay region seems high, but not exceptionally high.

  14. Merchandising of cigarettes in San Francisco pharmacies: 27 years later

    PubMed Central

    Eule, B; Sullivan, M; Schroeder, S; Hudmon, K

    2004-01-01

    Objective: To estimate changes since 1976 in the proportion of San Francisco pharmacies that sell cigarettes and to characterise the advertising of cigarettes and the merchandising of non-prescription nicotine replacement therapy (NRT) products in these retail establishments. Methods and setting: 100 randomly selected San Francisco pharmacies were visited in 2003. Pharmacies were characterised based on the sale of cigarettes, advertising for cigarettes, and the merchandising of non-prescription NRT products. Results: In 2003, 61% of pharmacies sold cigarettes, a significant decrease compared to 89% of pharmacies selling cigarettes in 1976 (p < 0.001); 84% of pharmacies selling cigarettes also displayed cigarette advertising. Non-prescription NRT products were stocked by 78% of pharmacies, and in 55% of pharmacies selling cigarettes, the NRT products were stocked immediately adjacent to the cigarettes. Conclusions: Since 1976, there has been a decline in the overall proportion of pharmacies in San Francisco that sell cigarettes yet most pharmacies, particularly traditional chain pharmacies, continue to merchandise the primary known risk factor for death in the USA. PMID:15564630

  15. Health hazard evaluation report HETA 98-0041-2741, San Francisco Municipal Railway, Flynn Facility, San Francisco, California

    SciTech Connect

    Blade, L.M.; Mortimer, V.D.

    1999-06-01

    The Director of Public Transportation for the City and County of San Francisco, California, requested that the National Institute of Occupational Safety and Health (NIOSHS) conduct a health hazard evaluation (HHE) at the San Francisco Municipal Railway's Flynn Facility. This facility serves as a base of operations for approximately 123 diesel-powered buses, leading to employee exposures to diesel-engine exhaust emissions in the workplace air. The requester, concerned about the potential adverse effects of these exposures on workers' health and about the apparent ineffectiveness of the facility's ventilation systems and other exposure-control measures, asked that NIOSH evaluate workplace exposures along with the ventilation system and other control measure and recommend appropriate improvements.

  16. Alcatraz Disposal Site Investigation. Report 3. San Francisco Bay- Alcatraz Disposal Site Erodibility

    DTIC Science & Technology

    1987-05-01

    MISCELLANEOUS PAPER HL-86-1 ALCATRAZ DISPOSAL SITE INVESTIGATION in Report 3 91X FILE COP’Y SAN FRANCISCO BAY- ALCATRAZ DISPOSAL SITE ERODIBILITY (V...Street ELEMENT NO NO NO ACCESSION NO San Francisco, CA 94105-1905 ________________ 11 TITLE (include Security Classification) Alcatraz Disposal Site...Investigation; Report 3, San Francisco Day- Alcatraz Disposal Site Teeter, Allen M. 13a TYPE OF REPORT 113b TIME COVERED 114 DATE OF REPORT (Year, A4oiith

  17. Plankton studies in San Francisco Bay; II, Phytoplankton abundance and species composition, July 1977-December 1979

    USGS Publications Warehouse

    Wong, Raymond L. J.; Cloern, James E.

    1981-01-01

    Data are presented on the phytoplankton species composition and abundance in San Francisco Bay from July 1977 through December 1979. Phytoplankton identification and enumerations were made at selected stations. Sample collections were made at selected stations in the main channel of the Bay from Rio Vista on the Sacramento River to Calaveras Point in South San Francisco Bay, and at shoal stations in the central portion of South San Francisco Bay, San Pablo Bay, and Suisun Bay. Also reported, from October 1978 through December 1979, are the calculated phytoplankton carbon and percent nondiatom carbon, and the species list. This study is one component of an ongoing interdisciplinary study of San Francisco Bay. (USGS)

  18. Multibeam Data and Socio-Economic Issues in West-Central San Francisco Bay, California

    USGS Publications Warehouse

    Chin, John L.; Carlson, Paul R.; Wong, Florence L.; Cacchione, David A.

    1998-01-01

    San Francisco Bay is the largest estuary on the conterminous U.S. Pacific Coast and is one of the world's largest natural harbors. It is a biologically productive and diverse environment. San Francisco Bay has a maritime economy that annually generates over $7.5 billion, handles 50 million tons of cargo, and involves thousands of jobs. Recent investigations by the USGS in this estuary help address both socio-economic and scientific issues: *Trimming pinnacles may prevent a calamitous oil spill. *Can San Francisco Bay accept more dredge spoil? *Bay floor biological habitats are quite varied. *How thick and how variable is the sediment fill in central San Francisco Bay?

  19. Romero Britto Stopped by Our Art Room

    ERIC Educational Resources Information Center

    Knappenberger, Jenny

    2012-01-01

    Art teachers often get stuck teaching students about "classical" artists who lived over 500 years ago. As art enthusiasts, teachers may be very interested in their importance, but children might be wondering why they have to learn about yet another dead artist. In this article, the author describes how her eighth-grade art students created their…

  20. Romero Britto Stopped by Our Art Room

    ERIC Educational Resources Information Center

    Knappenberger, Jenny

    2012-01-01

    Art teachers often get stuck teaching students about "classical" artists who lived over 500 years ago. As art enthusiasts, teachers may be very interested in their importance, but children might be wondering why they have to learn about yet another dead artist. In this article, the author describes how her eighth-grade art students created their…

  1. 33 CFR 100.1105 - San Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels Demonstration.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) Effective Periods. This section is effective during the U.S. Navy/City of San Francisco Fleetweek Parade of... Francisco, California. The Coast Guard Patrol Commander is empowered to forbid and control the movement of...

  2. 33 CFR 100.1105 - San Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels Demonstration.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) Effective Periods. This section is effective during the U.S. Navy/City of San Francisco Fleetweek Parade of... Francisco, California. The Coast Guard Patrol Commander is empowered to forbid and control the movement of...

  3. San Francisco Bay Sand Mining Resource Evaluation and Impact Analysis

    NASA Astrophysics Data System (ADS)

    Fenical, S.; Tirindelli, M.; Sicular, D.; Gragg, J.; Huitt, C.

    2012-12-01

    This paper presents results of the evaluation of potential future sand resources within certain Central San Francisco Bay (Central Bay) sand mining lease areas, as well as the potential impacts of further mining these areas for a ten-year period. The study consisted of morphological analysis using field measurements and hydrodynamic modeling, and covered a wide spectrum of physical processes including tidal and river circulation, salinity, sediment transport, and morphology. The study was conducted within the framework of an Environmental Impact Report (EIR) prepared by the California State Lands Commission (CSLC) as part of the discretionary approval process for issuing new mining leases. The results of the morphological analysis indicate a measurable depletion of sand resources in the Central Bay lease areas during the period 1997-2008, and that for the purposes of the proposed ten-year mining lease renewal, sand mining resources in Central Bay are largely limited to material already in place. The morphological analysis results also indicate that the proposed additional ten years of sand mining in the Central Bay lease areas are not likely to cause a significant impact on sediment transport and budgets in areas outside the vicinity of the lease areas, such as the San Francisco Bar, Ocean Beach, etc. Numerical modeling results, including particle tracking exercises, do indicate a net seaward transport of sand, and that a linkage exists between the mining areas and offshore areas (San Francisco Bar, Ocean Beach, etc). However, the modeling results demonstrate that the linkage is weak, and that any measurable changes in hydrodynamics, salinity and sediment transport/morphology caused by the mining activities are likely to be confined to the vicinity of the mining areas.

  4. Agricultural and Ranching area, Rio Sao Francisco, Brazil

    NASA Image and Video Library

    1990-12-10

    STS035-73-082 (2-10 Dec 1990) --- This agricultural and ranching area, Rio Sao Francisco, Brazil (13.0S, 43.5W) has been under study for several years. See scene STS-31-92-045 for comparison. This area has many small single family subsistence farms, large square and rectangular commercial farms and pastures for livestock grazing. Over the several years of observation, the number and size of farms has increased and center-pivot, swing-arm irrigation systems have been installed.

  5. California State Waters Map Series: offshore of San Francisco, California

    USGS Publications Warehouse

    Cochrane, Guy R.; Johnson, Samuel Y.; Dartnell, Peter; Greene, H. Gary; Erdey, Mercedes D.; Golden, Nadine E.; Hartwell, Stephen R.; Endris, Charles A.; Manson, Michael W.; Sliter, Ray W.; Kvitek, Rikk G.; Watt, Janet Tilden; Ross, Stephanie L.; Bruns, Terry R.; Cochrane, Guy R.; Cochran, Susan A.

    2015-01-01

    Circulation over the continental shelf in the Offshore of San Francisco map area is dominated by the southward-flowing California Current, an eastern limb of the North Pacific Gyre that flows from Oregon to Baja California. At its midpoint offshore of central California, the California Current transports subarctic surface waters southeastward, about 150 to 1,300 km from shore. Seasonal northwesterly winds that are, in part, responsible for the California Current, generate coastal upwelling. Ocean temperatures offshore of central California have increased over the past 50 years, driving an ecosystem shift from the productive subarctic regime towards a depopulated subtropical environment.

  6. Varnished Serpentinite on the Floor of San Francisco Bay

    NASA Astrophysics Data System (ADS)

    Keller, B. R.; Kimbrough, D.

    2012-12-01

    Serpentinite clasts recovered from dredge hauls in San Francisco Bay during commercial sand mining operations are typically covered with a dark, shiny varnish. Such a varnish is not developed on clasts of the same material from the nearby ocean and bay shores. Energy dispersive X-ray analysis of a varnished pebble showed little significant difference in composition between the varnish and the interior of the pebble. The time of immersion in seawater required for the varnish to develop is not known, however, a simple experiment indicates that it may begin within approximately one year.

  7. A week of SRI 2003 in San Francisco

    SciTech Connect

    Robinson, Art

    2003-09-29

    The Eighth International Conference on Synchrotron Radiation (SRI 2003) ended its August 25-28 run at the Yerba Buena Center for the Arts in San Francisco with almost as many in attendance as at the beginning. The steady attendance was surely a tribute to the quality of the program and the excitement it generated among the more than 700 registrants who gathered for four days of plenary talks, parallel sessions, and posters, as well as facility tours of the ALS and SSRL on August 29.

  8. Characterizing the scientific potential of satellite sensors. [San Francisco, California

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Analytical and programming support is to be provided to characterize the potential of the LANDSAT thematic mapper (TM) digital imagery for scientific investigations in the Earth sciences and in terrestrial physics. In addition, technical support to define lower atmospheric and terrestrial surface experiments for the space station and technical support to the Research Optical Sensor (ROS) study scientist for advanced studies in remote sensing are to be provided. Eleven radiometric calibration and correction programs are described. Coherent noise and bright target saturation correction are discussed along with image processing on the LAS/VAX and Hp-300/IDIMS. An image of San Francisco, California from TM band 2 is presented.

  9. A review of benthic faunal surveys in San Francisco Bay

    USGS Publications Warehouse

    Nichols, Frederic H.

    1973-01-01

    During the past 60 years, considerable effort has been expended in studies of the relations of the biotic community and physicochemical characteristics of San Francisco Bay water. In very recent years these studies have emphasized the relations between the 'state of health' of bottom-living invertebrates (the benthos) and the levels of pollutants in the bay. Benthic organisms, generally sessile, are unable to escape deleterious environmental changes, and they reflect these changes in alterations of normal species composition of assemblages and species abundance. Data that expands understanding of these relations in urbanized areas such as San Francisco Bay are critical. Because of the implications of such data in control of water quality, the U.S. Geological Survey undertook a review of the results and major conclusions of San Francisco Bay benthic surveys. The size and species composition of faunal assemblages are largely controlled by the salinity of the water, the texture of the bottom sediments, and locally by wastes discharged into the bay. Efforts to describe the structure and function of benthic communities of the bay and to quantify the effects of waste discharge on them have been hampered by inconsistent and often faulty sampling methodology and species identification. Studies made show a lack of information on the normal life processes of the organisms concerned. The diversity index (a mathematical expression of the number of kinds of organisms present at a location), commonly used to describe the 'health' of the benthic community, has been employed without regard for the need for standardizing methodology and species identifications or for understanding natural biological processes that affect such mathematical indices. There are few reliable quantitative data on the distribution of benthic organisms in San Francisco Bay with which future assessments of the 'health' of the benthic community might be compared. Methods for study of the benthos must be

  10. Nutritional assessment of free meal programs in San Francisco.

    PubMed

    Lyles, Courtney R; Drago-Ferguson, Soledad; Lopez, Andrea; Seligman, Hilary K

    2013-05-30

    Free meals often serve as a primary food source for adults living in poverty, particularly the homeless. We conducted a nutritional analysis of 22 meals from 6 free meal sites in San Francisco to determine macronutrient and micronutrient content. Meals provided too little fiber and too much fat but appropriate levels of cholesterol. They were also below target for potassium, calcium, and vitamins A and E. These findings may inform development of nutritional content standards for free meals, particularly for vulnerable patients who might have, or be at risk of developing, a chronic illness.

  11. Swash zone characteristics at Ocean Beach, San Francisco, CA

    USGS Publications Warehouse

    Erikson, L.H.; Hanes, D.M.; Barnard, P.L.; Gibbs, A.E.

    2007-01-01

    Runup data collected during the summer of 2005 at Ocean Beach, San Francisco, CA are analyzed and considered to be typical summer swash characteristics at this site. Analysis shows that the beach was dissipative with Iribarren numbers between 0.05 and 0.4 and that infragravity energy dominated. Foreshore slopes were mild between 0.01 and 0.05 with swash periods on the order of a minute. Predicted runup heights obtained with six previously developed analytical runup formulae were compared to measured extreme runup statistics. Formulations dependent on offshore wave height, foreshore slope and deep water wavelength gave reasonable results.

  12. Land mobile spectrum utilization: San Francisco, California and Chicago, Illinois

    NASA Astrophysics Data System (ADS)

    Reed, L. D.

    1980-08-01

    Radio frequency utilization by Federal Communication Commission licenses in the San Francisco and Chicago urbanized areas is described. The license include among others: police and fire departments; hospitals; public utilities; marine; and common carrier users. The extent of frequency utilization is described in terms of four occupancy categorizations (zero, low, substantial and very high). The rationale for these categories and their relationship to measured usage data is given. Summary tables enable direct comparison of the use by various individual, radio services, e.g., police, business, taxicab, etc. Separate analyses are given for utilization by each of the land mobile radio services and for each frequency band.

  13. 76 FR 65120 - Drawbridge Operation Regulation; Islais Creek, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-20

    ... necessary to allow the City of San Francisco to make emergency electrical repairs on the bridge. This....163(b), the draw shall open on signal if at least 72 hours advance notice is given to the San... 6 p.m. on November 18, 2011, to allow the City of San Francisco to complete emergency...

  14. The LATSTAT Report: Poverty and Inequality in San Francisco. Focus on Latino Families and Children.

    ERIC Educational Resources Information Center

    Pinderhughes, Raquel; And Others

    This report focuses on poverty and social inequality in San Francisco (California), presenting basic demographic information on the socioeconomic conditions of Latinos, African Americans, Asian/Pacific Islanders, and Whites in San Francisco, based on an analysis of U.S. Census data for 1970, 1980, and 1990. Although it presents comparative…

  15. San Francisco, Sacramento and San Jose lead nation on EPAs Energy Star Top Cities list

    EPA Pesticide Factsheets

    SAN FRANCISCO - Today, the U.S. Environmental Protection Agency released its seventh-annual list of the top 25 U.S. metropolitan areas with the most Energy Star certified buildings in 2014. This year, San Francisco ranks fifth with Sacramento coming

  16. 33 CFR 167.405 - Off San Francisco: Main ship channel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Off San Francisco: Main ship channel. 167.405 Section 167.405 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Separation Schemes and Precautionary Areas Pacific West Coast § 167.405 Off San Francisco: Main ship channel...

  17. 33 CFR 167.405 - Off San Francisco: Main ship channel.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Off San Francisco: Main ship channel. 167.405 Section 167.405 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Separation Schemes and Precautionary Areas Pacific West Coast § 167.405 Off San Francisco: Main ship channel...

  18. 33 CFR 167.405 - Off San Francisco: Main ship channel.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Off San Francisco: Main ship channel. 167.405 Section 167.405 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Separation Schemes and Precautionary Areas Pacific West Coast § 167.405 Off San Francisco: Main ship channel...

  19. 33 CFR 167.405 - Off San Francisco: Main ship channel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Off San Francisco: Main ship channel. 167.405 Section 167.405 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Separation Schemes and Precautionary Areas Pacific West Coast § 167.405 Off San Francisco: Main ship channel...

  20. 75 FR 5102 - Farallon National Wildlife Refuge, San Francisco County, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-01

    ... Fish and Wildlife Service Farallon National Wildlife Refuge, San Francisco County, CA AGENCY: Fish and...) for the Farallon National Wildlife Refuge (Refuge). In the CCP, we describe how we will manage the... make an appointment during regular business hours at San Francisco Bay National Wildlife Refuge Complex...

  1. 33 CFR 165.1181 - San Francisco Bay Region, California-regulated navigation area.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... necessary in the interests of safety. (c) Regulated Navigation Areas—(1) San Francisco Bay RNA. (i) The... along the shoreline to the point of beginning. Datum: NAD 83 (ii) The San Francisco Bay RNA consists of... beginning. Datum: NAD 83 (2) North Ship Channel RNA. The following is a regulated navigation area—The waters...

  2. 33 CFR 165.1181 - San Francisco Bay Region, California-regulated navigation area.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... necessary in the interests of safety. (c) Regulated Navigation Areas—(1) San Francisco Bay RNA. (i) The... along the shoreline to the point of beginning. Datum: NAD 83 (ii) The San Francisco Bay RNA consists of... beginning. Datum: NAD 83 (2) North Ship Channel RNA. The following is a regulated navigation area—The waters...

  3. 33 CFR 165.1181 - San Francisco Bay Region, California-regulated navigation area.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... necessary in the interests of safety. (c) Regulated Navigation Areas—(1) San Francisco Bay RNA. (i) The... along the shoreline to the point of beginning. Datum: NAD 83 (ii) The San Francisco Bay RNA consists of... beginning. Datum: NAD 83 (2) North Ship Channel RNA. The following is a regulated navigation area—The waters...

  4. 33 CFR 165.1181 - San Francisco Bay Region, California-regulated navigation area.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... necessary in the interests of safety. (c) Regulated Navigation Areas—(1) San Francisco Bay RNA. (i) The... along the shoreline to the point of beginning. Datum: NAD 83 (ii) The San Francisco Bay RNA consists of... beginning. Datum: NAD 83 (2) North Ship Channel RNA. The following is a regulated navigation area—The waters...

  5. 33 CFR 165.1181 - San Francisco Bay Region, California-regulated navigation area.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... necessary in the interests of safety. (c) Regulated Navigation Areas—(1) San Francisco Bay RNA. (i) The... along the shoreline to the point of beginning. Datum: NAD 83 (ii) The San Francisco Bay RNA consists of... beginning. Datum: NAD 83 (2) North Ship Channel RNA. The following is a regulated navigation area—The waters...

  6. 76 FR 71260 - Drawbridge Operation Regulation; China Basin, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-17

    ... necessary to allow the City of San Francisco to inspect the bridge structure as required by the U.S. Department of Transportation. This deviation allows the bridge to be secured in the closed-to-navigation..., to allow the City of San Francisco to inspect the bridge structure as required by the U.S....

  7. The Unimpressible Race. A Century of Educational Struggle by the Chinese in San Francisco.

    ERIC Educational Resources Information Center

    Low, Victor

    This book traces the history of the Chinese experience in America, particularly in the San Francisco area, from the California Gold Rush era of the 1850s to the construction of a new all-Chinese school in San Francisco's Chinatown district in the 1950s. The first five chapters of the book detail the withholding of school privileges from both…

  8. 33 CFR 167.405 - Off San Francisco: Main ship channel.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Off San Francisco: Main ship channel. 167.405 Section 167.405 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Separation Schemes and Precautionary Areas Pacific West Coast § 167.405 Off San Francisco: Main ship...

  9. 33 CFR 165.T11-589 - Safety zone; SFOBB Demolition Safety Zone, San Francisco, CA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety zone; SFOBB Demolition Safety Zone, San Francisco, CA. 165.T11-589 Section 165.T11-589 Navigation and Navigable Waters COAST... Guard District § 165.T11-589 Safety zone; SFOBB Demolition Safety Zone, San Francisco, CA. (a) Location...

  10. Proceedings of the Fourth Social Aspects and Recreation Research Symposium: February 4-6, 2004, San Francisco, California

    Treesearch

    Patrick T. Tierney; Deborah J. (Tech. coords.) Chavez

    2004-01-01

    The Fourth Social Aspects and Recreation Research (SARR) Symposium was held February 4-6, 2004 in San Francisco, California at the Presidio of San Francisco, a component of Golden Gate National Recreation Area and at San Francisco State University. The theme was: Linking People to the Outdoors: Connections for Healthy Lands, People and Communities.

  11. Characteristics of AA amyloidosis patients in San Francisco.

    PubMed

    Lejmi, Hiba; Jen, Kuang-Yu; Olson, Jean L; James, Sam H; Sam, Ramin

    2016-04-01

    AA amyloidosis due to subcutaneous injection of drugs of abuse has been described in the USA, but all the existing literature is from more than 20 years ago. There is more recent literature from Europe. We have observed a high incidence of AA amyloidosis in the county hospital in San Francisco. Here, we describe 24 patients who had kidney biopsy-proven AA amyloidosis from our hospital from 1998 to 2013. All the patients were thought to have AA amyloidosis from skin popping of illicit drugs after having exhausted the intravenous route. These patients with biopsy-proven AA amyloidosis were analysed further. All patients were found to have hepatitis C infection, hypertension was not common, most had advanced kidney failure, and acidosis was common as was tubulointerstitial involvement on the kidney biopsy. Other organ involvement included hepatomegaly and splenomegaly in a number of patients; direct myocardial involvement was not seen, but pulmonary hypertension, history of deep vein thrombosis and pulmonary embolism were common. The prognosis of these patients was poor. The mortality rate approached 50% 1 year after biopsy, and most of the patient needed dialysis shortly after diagnosis. Cessation of drug use seemed beneficial but rarely achievable. AA amyloidosis from skin popping is common in San Francisco. Most patients with renal involvement end up on dialysis, and mortality rates are exceedingly high. © 2015 Asian Pacific Society of Nephrology.

  12. Littoral processes: US Coast Guard Station, Fort Point, San Francisco

    SciTech Connect

    Ecker, R.M.; Whelan, G.

    1983-10-01

    The US Coast Guard Station, Fort Point is located three-quarters of a nautical mile southeast of the Golden Gate Strait, the entrance to San Francisco Bay. The existing storm wave conditions at Fort Point Station pier make it extremely dangerous for the SAR crews to get on and off the Motor Life Boats at times requiring the vessels to be moored at the San Francisco Yacht Harbor about 1.5 miles east of the Fort Point Station. To mitigate these harsh working conditions the US Coast Guard is considering the feasibility of constructing suitable all-weather moorings for the three Motor Life Boats at the Fort Point Station to enable unimpeded SAR operations, to provide safe working conditions for Coast Guard small boat crews, and to improve small boat maintenance conditions at Fort Point Station. The purpose of this report is to identify, analyze and evaluate physical environmental factors that could affect all-weather moorings siting, configuration and entrance location, as well as potential post construction alterations to littoral conditions and processes. This report includes a description of the site, description of pertinent littoral processes, evaluation of how these processes could affect construction of all-weather moorings, and discussion of design considerations, as well as mitigation measures to minimize potential adverse effects to the physical environment. 19 references, 27 figures, 26 tables.

  13. Deep Borehole Instrumentation Along San Francisco Bay Bridges - 2000

    SciTech Connect

    Hutchings, L.; Kasameyer, P.; Turpin, C.; Long, L.; Hollfelder, J.; McEvilly, T.; Clymer, R.; Uhrhammer, R.

    2000-03-01

    This is a progress report on the Bay Bridges downhole network. Between 2 and 8 instruments have been spaced along the Dumbarton, San Mateo, Bay, and San Rafael bridges in San Francisco Bay, California. The instruments will provide multiple use data that is important to geotechnical, structural engineering, and seismological studies. The holes are between 100 and 1000 ft deep and were drilled by Caltrans. There are twenty-one sensor packages at fifteen sites. The downhole instrument package contains a three component HS-1 seismometer and three orthogonal Wilcox 731 accelerometers, and is capable of recording a micro g from local M = 1.0 earthquakes to 0.5 g strong ground motion form large Bay Area earthquakes. Preliminary results on phasing across the Bay Bridge, up and down hole wave amplification at Yerba Buena Island, and sensor orientation analysis are presented. Events recorded and located during 1999 are presented. Also, a senior thesis on the deep structure of the San Francisco Bay beneath the Bay Bridge is presented as an addendum.

  14. 2005 hydrographic survey of south San Francisco Bay, California

    USGS Publications Warehouse

    Foxgrover, Amy C.; Jaffe, Bruce E.; Hovis, Gerald T.; Martin, Craig A.; Hubbard, James R.; Samant, Manoj R.; Sullivan, Steve M.

    2007-01-01

    An acoustic hydrographic survey of South San Francisco Bay (South Bay) was conducted in 2005. Over 20 million soundings were collected within an area of approximately 250 sq km (97 sq mi) of the bay extending south of Coyote Point on the west shore, to the San Leandro marina on the east, including Coyote Creek and Ravenswood, Alviso, Artesian, and Mud Sloughs. This is the first survey of this scale that has been conducted in South Bay since the National Oceanic and Atmospheric Administration National Ocean Service (NOS) last surveyed the region in the early 1980s. Data from this survey will provide insight to changes in bay floor topography from the 1980s to 2005 and will also serve as essential baseline data for tracking changes that will occur as restoration of the South San Francisco Bay salt ponds progress. This report provides documentation on how the survey was conducted, an assessment of accuracy of the data, and distributes the sounding data with Federal Geographic Data Committee (FGDC) compliant metadata. Reports from NOS and Sea Surveyor, Inc., containing additional survey details are attached as appendices.

  15. Preliminary analysis of cores from north San Francisco Bay, California

    USGS Publications Warehouse

    Allison, Dan; Hampton, Margaret; Jaffe, Bruce

    2003-01-01

    In March 2000, the U.S. Geological Survey collected sediment cores in the study area to determine the location of mercury-contaminated hydraulic mining debris. The study area (Figure 1) comprises 400 km2 and consists of San Pablo Bay and Suisun Bay, both of which are part of the San Francisco Bay estuary. Grizzly Bay, a subembayment of Suisun Bay, is also part of the study area. For the purpose of this report the term Suisun Bay will be used collectively for both areas. The present channel system in Suisun Bay is composed of three channels that flow through the bay. The primary channel runs in the southern section of Suisun Bay. A smaller channel flows between Roe Island and Ryer Island. The deepest channel flows through Suisun Cutoff, north of Ryer Island, and past Grizzly Bay. All three channels join at Carquinez Strait where they continue through the southern section of San Pablo Bay, and into San Francisco Bay. The average depths in San Pablo and Suisun Bays at mean sea level are 3.7 m and 5.8 m, respectively (Smith et al., 2002).

  16. Early Effects of the San Francisco Paid Sick Leave Policy

    PubMed Central

    Colla, Carrie H.; Dow, William H.; Dube, Arindrajit; Lovell, Vicky

    2014-01-01

    Objectives. We examined employers’ responses to San Francisco, California’s 2007 Paid Sick Leave Ordinance. Methods. We used the 2009 Bay Area Employer Health Benefits Survey to describe sick leave policy changes and the policy’s effects on firm (n = 699) operations. Results. The proportion of firms offering paid sick leave in San Francisco grew from 73% in 2006 to 91% in 2009, with large firms (99%) more likely to offer sick leave than are small firms (86%) in 2009. Most firms (57%) did not make any changes to their sick leave policy, although 17% made a major change to sick leave policy to comply with the law. Firms beginning to offer sick leave reported reductions in other benefits (39%), worse profitability (32%), and increases in prices (18%) but better employee morale (17%) and high support for the policy (71%). Many employers (58%) reported some difficulty understanding legal requirements, complying administratively, or reassigning work responsibilities. Conclusions. There was a substantial increase in paid sick leave coverage after the mandate. Employers reported some difficulties in complying with the law but supported the policy overall. PMID:24432927

  17. Giant sand waves at the mouth of San Francisco Bay

    USGS Publications Warehouse

    Barnard, P.L.; Hanes, D.M.; Rubin, D.M.; Kvitek, R.G.

    2006-01-01

    A field of giant sand waves, among the largest in the world, recently was mapped in high resolution for the first time during a multibeam survey in 2004 and 2005 through the strait of the Golden Gate at the mouth of San Francisco Bay in California (Figure la). This massive bed form field covers an area of approximately four square kilometers in water depths ranging from 30 to 106 meters, featuring more than 40 distinct sand waves with crests aligned approximately perpendicular to the dominant tidally generated cross-shore currents, with wavelengths and heights that measure up to 220 meters and 10 meters, respectively. Sand wave crests can be traced continuously for up to two kilometers across the mouth of this energetic tidal inlet, where depth-averaged tidal currents through the strait below the Golden Gate Bridge exceed 2.5 meters per second during peak ebb flows. Repeated surveys demonstrated that the sand waves are active and dynamic features that move in response to tidally generated currents. The complex temporal and spatial variations in wave and tidal current interactions in this region result in an astoundingly diverse array of bed form morphologies, scales, and orientations. Bed forms of approximately half the scale of those reported in this article previously were mapped inside San Francisco Bay during a multibeam survey in 1997 [Chin et al., 1997].

  18. Two-Dimensional Micro-Colloid Thruster Fabrication: Holey Fiber Technology for Colloid Thruster Emitter Clusters

    DTIC Science & Technology

    2007-11-02

    applications. SEM images provided by Luis Fernando Velasques of MIT MIT tested the wetting properties of several materials such as bare Silicon(with various...system based on zwitterionic liquid and HTFSI, Chem. Commun, 2004, 1828-1829 [5] 1. Romero-Sanz, I. Aguirre -de-Carcer and J. Fernandez de la Mora, Ionic

  19. Coastal Adaptation: The Case of Ocean Beach, San Francisco

    NASA Astrophysics Data System (ADS)

    Cheong, S.

    2012-12-01

    Coastal erosion, storms, sea-level rise, and tsunamis all lead to inundation that puts people and communities at risk. Adapting to these coastal hazards has gained increasing attention with climate change. Instead of promoting one particular strategy such as seawalls or defending against one type of hazard, scholars and practitioners encourage a combination of existing methods and strategies to promote synergistic effects. The recently published Intergovernmental Panel on Climate Change (IPCC) Special Report on climate extremes reflects this trend in the integration of disaster risk management and climate change adaptation. This paper focuses on the roles, compatibilities, and synergies of three coastal adaptation options - engineering, vegetation, and policy - in the case of Ocean Beach in San Francisco. Traditionally engineering approach and ecosystem conservation often have stood in opposition as hard shoreline structures destroy coastal habitats, worsen coastal erosion, divert ocean currents, and prevent the natural migration of shores. A natural migration of shores without structure translates into the abandonment of properties in the coastal zone, and is at odds with property rights and development. For example, policies of relocation, retreat, and insurance may not be popular given the concerns of infrastructure and coastal access. As such, engineering, natural defense, and policy can be more conflictual than complementary. Nonetheless, all these responses are used in combination in many locations. Complementarities and compatibilities, therefore, must be assessed when considering the necessity of engineering responses, natural defense capabilities, and policy options. In this light, the question is how to resolve the problem of mixed responses and short- and long-term interests and values, identify compatibilities, and generate synergies. In the case of Ocean Beach, recent erosions that endangered San Francisco's wastewater treatment system acted as major

  20. Seasonal/Yearly Salinity Variations in San Francisco Bay

    USGS Publications Warehouse

    Peterson, David H.; Cayan, Daniel R.; Dettinger, Michael D.; DiLeo, Jeanne Sandra; Hager, Stephen E.; Knowles, Noah; Nichols, Frederic H.; Schemel, Laurence E.; Smith, Richard E.; Uncles, Reginald J.

    1995-01-01

    The ability of resource agencies to manage fish, wildlife and freshwater supplies of San Francisco Bay estuary requires an integrated knowledge of the relations between the biota and their physical environment. A key factor in these relations is the role of salinity in determining both the physical and the biological character of the estuary. The saltiness of the water, and particularly its seasonal and interannual patterns of variability, affects which aquatic species live where within the estuary. Salinity also determines where water can and cannot be diverted for human consumption and irrigated agriculture, and plays a role in determining the capacity of the estuary to cleanse itself of wastes. In short, salinity is a fundamental property of estuarine physics and chemistry that, in turn, determines the biological characteristics of each estuary. Freshwater is a major control on estuarine salinity. Most freshwater supplied to the Bay is from river flow through the Delta, which is primarily runoff from the Sierra Nevada. Most contaminants in San Francisco Bay are from the Sacramento/San Joaquin Valley and the local watershed around the Bay rather than the sea or atmosphere. Land is the primary source of freshwater and freshwater serves as a tracer of land-derived substances such as the trace metals (copper, lead and selenium), pesticides and plant nutrients (nitrate and phosphate). The U.S. Geological Survey is collaborating with other agencies and institutions in studying San Francisco Bay salinity using field observations and numerical simulations to define the physical processes that control salinity. The issues that arise from salinity fluctuations, however, differ in the northern and southern parts of the bay. In North Bay we need to know how salinity responds to freshwater flow through the Sacramento/San Joaquin Delta; this knowledge will benefit water managers who determine how much delta flow is needed a) to protect freshwater supplies for municipal water

  1. Reciprocal hybrid formation of Spartina in San Francisco Bay.

    PubMed

    Anttila, C K; King, R A; Ferris, C; Ayres, D R; Strong, D R

    2000-06-01

    Diversity in the tRNALEU1 intron of the chloroplast genome of Spartina was used to study hybridization of native California cordgrass, Spartina foliosa, with S. alterniflora, introduced to San Francisco Bay approximately 25 years ago. We sequenced 544 bases of the tRNALEU1 intron and found three polymorphic sites, a pyrimidine transition at site 126 and transversions at sites 382 and 430. Spartina from outside of San Francisco Bay, where hybridization between these species is impossible, gave cpDNA genotypes of the parental species. S. foliosa had a single chloroplast haplotype, CCT, and this was unique to California cordgrass. S. alterniflora from the native range along the Atlantic coast of North America had three chloroplast haplotypes, CAT, TAA, and TAT. Hybrids were discriminated by random amplified polymorphic DNA (RAPD) phenotypes developed in a previous study. We found one hybrid that contained a cpDNA haplotype unknown in either parental species (TCT). The most significant finding was that hybridization proceeds in both directions, assuming maternal inheritance of cpDNA; 26 of the 36 hybrid Spartina plants from San Francisco Bay contained the S. foliosa haplotype, nine contained haplotypes of the invading S. alterniflora, and one had the cpDNA of unknown origin. Furthermore, cpDNA of both parental species was distributed throughout the broad range of RAPD phenotypes, suggesting ongoing contributions to the hybrid swarm from both. The preponderance of S. foliosa cpDNA has entered the hybrid swarm indirectly, we propose, from F1s that backcross to S. foliosa. Flowering of the native precedes by several weeks that of the invading species, with little overlap between the two. Thus, F1 hybrids would be rare and sired by the last S. foliosa pollen upon the first S. alterniflora stigmas. The native species produces little pollen and this has low viability. An intermediate flowering time of hybrids as well as pollen that is more vigourous and abundant than that of

  2. Water temperatures of California streams, San Francisco Bay subregion

    USGS Publications Warehouse

    Blodgett, J.C.

    1971-01-01

    A summary of water-temperature records is presented for data collected through September 1968 in the San Francisco Bay Subregion of California. This report is one of a series covering the 11 hydrologic subregions of the State and includes data for 87 stream sites. Water temperatures, in degrees Celsius, are summarized by months, years, and for the period of record. A description is included to identify each station where data were collected. A tolerance interval analysis indicated that 99 percent of the point water-temperature observations, determined either with thermograph probes or hand-held thermometers, should be ±0.6°C of the mean water temperature at the 95-percent confidence level. The probable total error ranges from ±0.8°C for periodic data to ±1.4°C for thermograph data.

  3. Birds and environmental contaminants in San Francisco and Chesapeake Bays

    USGS Publications Warehouse

    Ohlendorf, H.M.; Fleming, W.J.

    1988-01-01

    The direct and indirect effects of human activities, including environmental contamination, upon bird populations in San Francisco Bay and Chesapeake Bay are imperfectly understood, and few data are available. that allow a comparison of the contamination levels in birds from these two areas. Certain trace elements and organochlorine compounds have been found at sufficiently high concentrations in bird tissues or their foods to expect adverse effects in these birds, based upon results of field and laboratory studies conducted with other avian species. The decline and recovery of populations of many avian species have been recorded, including some associated with organochlorine contamination. The present paper summarizes available information on the occurrence and potential effects of contaminants upon birds in these two regions.

  4. Rocks and geology in the San Francisco Bay region

    USGS Publications Warehouse

    Stoffer, Philip W.

    2002-01-01

    The landscape of the San Francisco Bay region is host to a greater variety of rocks than most other regions in the United States. This introductory guide provides illustrated descriptions of 46 common and important varieties of igneous, sedimentary, and metamorphic rock found in the region. Rock types are described in context of their identification qualities, how they form, and where they occur in the region. The guide also provides discussion about of regional geology, plate tectonics, the rock cycle, the significance of the selected rock types in relation to both earth history and the impact of mineral resources on the development in the region. Maps and text also provide information where rocks, fossils, and geologic features can be visited on public lands or in association with public displays in regional museums, park visitor centers, and other public facilities.

  5. Historical Seismicity in the South San Francisco Bay Region

    USGS Publications Warehouse

    Bakun, William H.

    2008-01-01

    Locations (intensity centers) and moment magnitude M for 24 earthquakes (1858-1911) in the southern San Francisco Bay area are estimated from Modified Mercalli intensity (MMI) assignments. The uncertainties in location and M are generally large because there are few MMI assignments available. Preferred locations are selected to be consistent with a simple model for seismic activity on the central and southern Calaveras fault. Significant seismic activity can be explained by repetitive failure of the same fault areas in nearly identical earthquakes. Significant earthquake activity occurred on both east- and west-Bay faults in the ten or so years before the 1868 east-Bay earthquake and before the1906 and 1989 west-Bay earthquakes.

  6. Visualizing the ground motions of the 1906 San Francisco earthquake

    USGS Publications Warehouse

    Chourasia, A.; Cutchin, S.; Aagaard, B.

    2008-01-01

    With advances in computational capabilities and refinement of seismic wave-propagation models in the past decade large three-dimensional simulations of earthquake ground motion have become possible. The resulting datasets from these simulations are multivariate, temporal and multi-terabyte in size. Past visual representations of results from seismic studies have been largely confined to static two-dimensional maps. New visual representations provide scientists with alternate ways of viewing and interacting with these results potentially leading to new and significant insight into the physical phenomena. Visualizations can also be used for pedagogic and general dissemination purposes. We present a workflow for visual representation of the data from a ground motion simulation of the great 1906 San Francisco earthquake. We have employed state of the art animation tools for visualization of the ground motions with a high degree of accuracy and visual realism. ?? 2008 Elsevier Ltd.

  7. Enteric pathogenic protozoa in homosexual men from San Francisco.

    PubMed

    Ortega, H B; Borchardt, K A; Hamilton, R; Ortega, P; Mahood, J

    1984-01-01

    The prevalence of enteric protozoa was studied in a survey conducted among 150 male homosexual patients in San Francisco. All patients were from a private practice in internal medicine. Each was asked to complete a questionnaire and to submit multiple stool specimens for examination. Of this group, 47% were positive for one or more potentially pathogenic intestinal protozoa; Entamoeba histolytica was found in 36%, Entamoeba hartmanni in 35%, Giardia lamblia in 5%, and Dientamoeba fragilis in 1.3%. Symptoms were unreliable as a diagnostic index of intestinal protozoan infection. Colonization rates could not be correlated with any specific sexual technique. The large number of homosexuals at risk, combined with the potential for difficulties in diagnosis and contact-tracing, indicate the possibility that enteric pathogenic protozoa will cause future health problems in this population.

  8. Characterizing the scientific potential of satellite sensors. [San Francisco, California

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Eleven thematic mapper (TM) radiometric calibration programs were tested and evaluated in support of the task to characterize the potential of LANDSAT TM digital imagery for scientific investigations in the Earth sciences and terrestrial physics. Three software errors related to integer overflow, divide by zero, and nonexist file group were found and solved. Raw, calibrated, and corrected image groups that were created and stored on the Barker2 disk are enumerated. Black and white pixel print files were created for various subscenes of a San Francisco scene (ID 40392-18152). The development of linear regression software is discussed. The output of the software and its function are described. Future work in TM radiometric calibration, image processing, and software development is outlined.

  9. Evolution of San Francisco Bay Area urban trails.

    PubMed

    Desmond, Bree

    2011-01-01

    The Family and Child Guidance Clinic of the Native American Health Center (NAHC) has developed strong working relationships with San Francisco Bay Area system partners in order to serve the mental health needs of American Indian/Alaska Native children and families. NAHC worked relentlessly with stakeholders to pave the Urban Trails that urban Indigenous community members utilize to access culturally competent care. These Urban Trails have been grounded in a community-based system of care model and cultural framework that links substance abuse and mental health through a holistic approach congruent with Indigenous values and traditions. This article describes how NAHC has partnered with community members and organizational stakeholders to develop and sustain an effective holistic system for serving urban Indigenous people.

  10. Water Quality Analysis of Yosemite Creek Watershed, San Francisco, California

    NASA Astrophysics Data System (ADS)

    Davis, J. R.; Snow, M. K.; Aquino, A.; Huang, C.; Thai, A.; Yuen, C.

    2003-12-01

    Surface water quality in urban settings can become contaminated by anthropogenic inputs. Yosemite Creek watershed is situated on the east side of San Francisco near Bayview Hunters Point and provides an ideal location for water quality investigations in urban environments. Accordingly, students from Philip and Sala Burton High School monitored water quality at three locations for their physicochemical and biological characteristics. Water was tested for pH, dissolved oxygen, conductivity, total dissolved solids, salinity, and oxidation reduction potential. In addition, a Hach DR 850 digital colorimeter was utilized to measure chlorine, fluorine, nitrogen, phosphorous, and sulfate. The biological component was assessed via monitoring benthic macro invertebrates. Specifically, the presence of caddisfly (Trichoptera) were used to indicate low levels of contaminants and good water quality. Our results indicate that water quality and macro invertebrate populations varied spatially within the watershed. Further investigation is needed to pinpoint the precise location of contaminant inputs.

  11. Microplastic contamination in the San Francisco Bay, California, USA.

    PubMed

    Sutton, Rebecca; Mason, Sherri A; Stanek, Shavonne K; Willis-Norton, Ellen; Wren, Ian F; Box, Carolynn

    2016-08-15

    Despite widespread detection of microplastic pollution in marine environments, data describing microplastic abundance in urban estuaries and microplastic discharge via treated municipal wastewater are limited. This study presents information on abundance, distribution, and composition of microplastic at nine sites in San Francisco Bay, California, USA. Also presented are characterizations of microplastic in final effluent from eight wastewater treatment plants, employing varying treatment technologies, that discharge to the Bay. With an average microplastic abundance of 700,000particles/km(2), Bay surface water appears to have higher microplastic levels than other urban waterbodies sampled in North America. Moreover, treated wastewater from facilities that discharge into the Bay contains considerable microplastic contamination. Facilities employing tertiary filtration did not show lower levels of contamination than those using secondary treatment. As textile-derived fibers were more abundant in wastewater, higher levels of fragments in surface water suggest additional pathways of microplastic pollution, such as stormwater runoff.

  12. Large scale simulations of the great 1906 San Francisco earthquake

    NASA Astrophysics Data System (ADS)

    Nilsson, S.; Petersson, A.; Rodgers, A.; Sjogreen, B.; McCandless, K.

    2006-12-01

    As part of a multi-institutional simulation effort, we present large scale computations of the ground motion during the great 1906 San Francisco earthquake using a new finite difference code called WPP. The material data base for northern California provided by USGS together with the rupture model by Song et al. is demonstrated to lead to a reasonable match with historical data. In our simulations, the computational domain covered 550 km by 250 km of northern California down to 40 km depth, so a 125 m grid size corresponds to about 2.2 Billion grid points. To accommodate these large grids, the simulations were run on 512-1024 processors on one of the supercomputers at Lawrence Livermore National Lab. A wavelet compression algorithm enabled storage of time-dependent volumetric data. Nevertheless, the first 45 seconds of the earthquake still generated 1.2 TByte of disk space and the 3-D post processing was done in parallel.

  13. [Francisco Varela's neurophenomenology of time: temporality of consciousness explained?].

    PubMed

    Vargas, Esteban; Canales-Johnson, Andrés; Claudio Fuentes, B

    2013-01-01

    This article attempts to clarify Francisco Varela's proposal of a neurophenomenology of time consciousness in the light of distinctions based on the philosophical literature of phenomenology and recent advances of neurobiology. The analysis is carried out considering three aspects. In the first of them, we discuss the phenomenological aspect of consciousness, accessible in first-person, which describes time as a structure with three inseparable moments (past-present-future) and three levels of temporality, and not merely as the chronometric time or clock time. In the second one, we analyze the neurobiological aspect of consciousness that tends to "explain" the phenomenological time in terms of three possible levels of neuronal integration. Thus, we propose a correspondence between the levels of phenomenological time and neural integration processes. Finally, we try to analyze this "correspondence" and the issues that follow from this by considering that the notion of time in this correspondence is, in essence, the clock time and not the phenomenological time consciousness.

  14. 2004 Fall Meeting Expands to San Francisco Marriott !

    NASA Astrophysics Data System (ADS)

    Wesson, Rob; Burch, Jim; Plescia, Jeff

    2004-10-01

    After only one year, the AGU Fall Meeting has grown beyond the capacity of Moscone West. Sessions at the upcoming Fall Metting (13-17 December) will be held in both the Moscone West faicility, site of last year's meeting and the San Francisco Marriott Hotel. The Marriott is a 5-minute walk across the street, a distance not farther than the walk from Moscone North to Moscone South, the facilities in which the meeting was held for several years prior to 2003. The Program Committe has tried to schedule sessions to minimize the inconvenience of the 5-minute walk between the two locations. Most Union sessions, including the Union tutorials and the Frontiers of Geophysics lecture, along with many other sessions, will be held at theMarriott. In addition, most Section and Focus groups social events and other activities will be held at the Marriott.

  15. Deep bore hole instrumentation along San Francisco Bay Bridges

    SciTech Connect

    Bakun, W.; Bowman, J.; Clymer, R.; Foxall, W.; Hipley, P.; Hollfelder, J.; Hutchings, L.; Jarpe, S.; Kasameyer, P.; McEvilly, T.; Mualchin, L.; Palmer, M.

    1998-10-01

    The Bay Bridges down hole network consists of sensors in bore holes that are drilled 100 ft. into bedrock around and in the San Francisco Bay. Between 2 and 8 instruments have been spaced along the Dumbarton, San Mateo, Bay, and San Rafael bridges. The instruments will provide multiple use data that is important to geotechnical, structural engineering, and seismological studies. The holes are between 100 and 1000 ft deep and were drilled by Caltrans. There are twenty- one sensor packages at fifteen sites. Extensive financial support is being contributed by Caltrans, UCB, LBL, LLNL-LDRD, U.C. Campus/Laboratory Collaboration (CLC) program, and USGS. The down hole instrument package contains a three component HS-1 seismometer and three orthogonal Wilcox 73 1 accelerometers, and is capable of recording a micro g from local M = 1.0 earthquakes to 0.5 g strong ground motion form large Bay Area earthquakes.

  16. Selenium in San Francisco Bay - 30 Years of Surprises

    NASA Astrophysics Data System (ADS)

    Cutter, G. A.

    2015-12-01

    The trace element selenium exists in multiple oxidation states (VI, IV, 0, -II) and chemical forms within an oxidation state, and this chemical speciation affects its bio-availability and geochemical cycling. The interactions between the physical circulation and riverine inputs, changing ecosystem components, and industrial inputs to the San Francisco Bay have had profound and surprising influences on the biogeochemical behavior of selenium in this estuary. In the mid-1980s dissolved selenium was relatively elevated and enriched in selenite (SeIV) in the mid-estuary, occurrences that were quantitatively linked to inputs from oil refinery effluents. Suspended particulate selenium concentrations were at a level considered problematic for filter feeding clams with high assimilation efficiencies. By 1999 oil refineries had implemented selenium removal processes that dramatically dropped the concentrations of total dissolved selenium and selenite by over 65% in the estuarine water column. Surprisingly, the concentrations of selenium in suspended particles did not drop as dramatically. We suspect that changes in the ecosystem, including the abundance of certain phytoplankton species and changes in benthic grazing affect the abundance of selenium in suspended particles. These and other changes within the San Francisco Bay system have been simulated in numerical models that reveal other surprising aspects of selenium cycling in this estuary. Data and models will be discussed in this presentation, and implications for other trace elements presented.

  17. Physical and chemical properties of San Francisco Bay, California, 1980

    USGS Publications Warehouse

    Ota, Allan Y.; Schemel, L.E.; Hager, S.W.

    1989-01-01

    The U.S. Geological Survey conducted hydrologic investigations in both the deep water channels and the shallow-water regions of the San Francisco Bay estuarine system during 1980. Cruises were conducted regularly, usually at two-week intervals. Physical and chemical properties presented in this report include temperature , salinity, suspended particulate matter, turbidity, extinction coefficient, partial pressure of CO2, partial pressure of oxygen , dissolved organic carbon, particulate organic carbon, discrete chlorophyll a, fluorescence of photosynthetic pigments, dissolved silica, dissolved phosphate, nitrate plus nitrite, nitrite, ammonium, dissolved inorganic nitrogen, dissolved nitrogen, dissolved phosphorus, total nitrogen, and total phosphorus. Analytical methods are described. The body of data contained in this report characterizes hydrologic conditions in San Francisco Bay during a year with an average rate of freshwater inflow to the estuary. Concentrations of dissolved silica (discrete-sample) ranged from 3.8 to 310 micro-M in the northern reach of the bay, whereas the range in the southern reach was limited to 63 to 150 micro-M. Concentrations of phosphate (discrete-sample) ranged from 1.3 to 4.4 micro-M in the northern reach, which was narrow in comparison with that of 2.2 to 19.0 micro-M in the southern reach. Concentrations of nitrate plus nitrite (discrete-sample) ranged from near zero to 53 micro-M in the northern reach, and from 2.3 to 64 micro-M in the southern reach. Concentrations of nitrite (discrete-sample) were low in both reaches, exhibiting a range from nearly zero to approximately 2.3 micro-M. Concentrations of ammonium (discrete-sample) ranged from near zero to 14.2 micro-M in the northern reach, and from near zero to 8.3 micro-M in the southern reach. (USGS)

  18. Biological effects of anthropogenic contaminants in the San Francisco Estuary

    USGS Publications Warehouse

    Thompson, B.; Adelsbach, T.; Brown, C.; Hunt, J.; Kuwabara, J.; Neale, J.; Ohlendorf, H.; Schwarzbach, S.; Spies, R.; Taberski, K.

    2007-01-01

    Concentrations of many anthropogenic contaminants in the San Francisco Estuary exist at levels that have been associated with biological effects elsewhere, so there is a potential for them to cause biological effects in the Estuary. The purpose of this paper is to summarize information about biological effects on the Estuary's plankton, benthos, fish, birds, and mammals, gathered since the early 1990s, focusing on key accomplishments. These studies have been conducted at all levels of biological organization (sub-cellular through communities), but have included only a small fraction of the organisms and contaminants of concern in the region. The studies summarized provide a body of evidence that some contaminants are causing biological impacts in some biological resources in the Estuary. However, no general patterns of effects were apparent in space and time, and no single contaminant was consistently related to effects among the biota considered. These conclusions reflect the difficulty in demonstrating biological effects due specifically to contamination because there is a wide range of sensitivity to contaminants among the Estuary's many organisms. Additionally, the spatial and temporal distribution of contamination in the Estuary is highly variable, and levels of contamination covary with other environmental factors, such as freshwater inflow or sediment-type. Federal and State regulatory agencies desire to develop biological criteria to protect the Estuary's biological resources. Future studies of biological effects in San Francisco Estuary should focus on the development of meaningful indicators of biological effects, and on key organism and contaminants of concern in long-term, multifaceted studies that include laboratory and field experiments to determine cause and effect to adequately inform management and regulatory decisions. ?? 2006 Elsevier Inc. All rights reserved.

  19. Heroin overdose among young injection drug users in San Francisco.

    PubMed

    Ochoa, Kristen C; Davidson, Peter J; Evans, Jennifer L; Hahn, Judith A; Page-Shafer, Kimberly; Moss, Andrew R

    2005-12-12

    We sought to identify prevalence and predictors of heroin-related overdose among young injection drug users (IDU). A total of 795 IDU under age of 30 years were interviewed in four neighbourhoods in San Francisco, California, USA. Participants were recruited as part of a broader study of HIV, hepatitis B and C among injecting drug users in San Francisco using street outreach and snowball techniques. Independent predictors of recent heroin overdose requiring intervention were determined using regression analysis. Of 795 injecting drug users under age of 30 years, 22% (174/795) of participants reported a heroin overdose in the last year. In stepwise multiple logistic regression, independent predictors of recent heroin overdose were lifetime incarceration exceeding 20 months (odds ratio (OR) = 2.99, 95% confidence interval (CI) = 1.52-5.88); heroin injection in the last 3 months (OR = 4.89, 95% CI = 2.03-11.74); cocaine injection in the last 3 months (OR = 1.67, 95% CI = 1.14-2.45); injection of heroin mixed with methamphetamine in the last 3 months (OR = 1.74, 95% CI = 1.15-2.65); ever tested for hepatitis B or C (OR = 1.66 per year, CI = 1.09-2.54) and ever having witnessed another person overdose (OR = 2.89, 95% CI = 1.76-4.73). Individuals with high levels of incarceration are at great risk of overdose, and prison or jail should be considered a primary intervention site. Further research on the role of cocaine and amphetamine in heroin-related overdose is indicated.

  20. The Escuela Moderna Movement of Francisco Ferrer: "Por la Verdad y la Justicia."

    ERIC Educational Resources Information Center

    Fidler, Geoffrey C.

    1985-01-01

    The educational theory and practice of the Escuela Modern (Modern School) movement of the Spanish educator Francisco Ferrer, born in 1850, are discussed. Two fundamental tendencies of the movement are child-centered education and education in didactic terms. (RM)

  1. Coastal processes study at Ocean Beach, San Francisco, CA: summary of data collection 2004-2006

    USGS Publications Warehouse

    Barnard, Patrick L.; Eshleman, Jodi; Erikson, Li H.; Hanes, Daniel M.

    2007-01-01

    Ocean Beach in San Francisco, California, contains a persistent erosional section in the shadow of the San Francisco ebb tidal delta and south of Sloat Boulevard that threatens valuable public infrastructure as well as the safe recreational use of the beach. Coastal managers have been discussing potential mediation measures for over a decade, with little scientific research available to aid in decision making. The United States Geological Survey (USGS) initiated the Ocean Beach Coastal Processes Study in April 2004 to provide the scientific knowledge necessary for coastal managers to make informed management decisions. This study integrates a wide range of field data collection and numerical modeling techniques to document nearshore sediment transport processes at the mouth of San Francisco Bay, with emphasis on how these processes relate to erosion at Ocean Beach. The Ocean Beach Coastal Processes Study is the first comprehensive study of coastal processes at the mouth of San Francisco Bay.

  2. Water level, specific conductance, and water temperature data, San Francisco Bay, California, for Water Year 2000

    USGS Publications Warehouse

    Buchanan, P.A.

    2002-01-01

    Time series of water-level, specific-conductance, and watertemperature data were collected at seven sites in San Francisco Bay during water year 2000 (October 1, 1999 through September 30, 2000). Water-level data were recorded only at Point San Pablo. Specific-conductance and water-temperature data were recorded at 15-minute intervals at the following locations (Figure 1): • Carquinez Strait at Carquinez Bridge • Napa River at Mare Island Causeway near Vallejo • San Pablo Bay at Petaluma River Channel Marker 9 • San Pablo Strait at Point San Pablo • Central San Francisco Bay at Presidio Military Reservation • Central San Francisco Bay at Pier 24 • South San Francisco Bay at San Mateo Bridge near Foster City.

  3. Reducing Nutrients to San Francisco Bay through Additional Wastewater Sidestream Treatment Project

    EPA Pesticide Factsheets

    Information about the SFBWQP Reducing Nutrients to San Francisco Bay Project, part of an EPA competitive grant program to improve SF Bay water quality focused on restoring impaired waters and enhancing aquatic resources.

  4. BACTERIOPLANKTON DYNAMICS IN NORTHERN SAN FRANCISCO BAY: ROLE OF PARTICLE ASSOCIATION AND SEASONAL FRESHWATER FLOW

    EPA Science Inventory

    Bacterioplankton abundance and metabolic characteristics were observed in northern San Francisco Bay, California, during spring and summer 1996 at three sites: Central Bay, Suisun Bay, and the Sacramento River. These sites spanned a salinity gradient from marine to freshwater, an...

  5. Breakthrough for Bilingual Education: Lau v. Nichols and the San Francisco School System

    ERIC Educational Resources Information Center

    Waugh, Dexter; Koon, Bruce

    1974-01-01

    An examination of the issues and implications of the Lau case in which the San Francisco school district was instructed to provide meaningful bilingual-bicultural educational programs for non-English speaking students. (EH)

  6. 5. Photocopy of painting (collection of DeYoung Museum, San Francisco) ...

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

    5. Photocopy of painting (collection of DeYoung Museum, San Francisco) Oriana Day, painter after 1861 FRONT OF CHURCH BEFORE 1835 - Mission Santa Cruz, Emmet & School Streets, Santa Cruz, Santa Cruz County, CA

  7. BACTERIOPLANKTON DYNAMICS IN NORTHERN SAN FRANCISCO BAY: ROLE OF PARTICLE ASSOCIATION AND SEASONAL FRESHWATER FLOW

    EPA Science Inventory

    Bacterioplankton abundance and metabolic characteristics were observed in northern San Francisco Bay, California, during spring and summer 1996 at three sites: Central Bay, Suisun Bay, and the Sacramento River. These sites spanned a salinity gradient from marine to freshwater, an...

  8. The Escuela Moderna Movement of Francisco Ferrer: "Por la Verdad y la Justicia."

    ERIC Educational Resources Information Center

    Fidler, Geoffrey C.

    1985-01-01

    The educational theory and practice of the Escuela Modern (Modern School) movement of the Spanish educator Francisco Ferrer, born in 1850, are discussed. Two fundamental tendencies of the movement are child-centered education and education in didactic terms. (RM)

  9. 30. Photocopy of October 1926 photograph in San Francisco CallBulletin ...

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

    30. Photocopy of October 1926 photograph in San Francisco Call-Bulletin Library. ARTICLES SAVED FROM THE FIRE OF OCTOBER 23, 1926 - Mission Santa Clara de Asis, Franklin & Grant Streets, Santa Clara, Santa Clara County, CA

  10. Beneficial Uses of Dredged Material Case Study: San Francisco Bay Region

    EPA Pesticide Factsheets

    A major interagency, regional planning effort led to the development of the Long-Term Management Strategy and other planning programs in the San Francisco Bay area. These programs incorporate beneficial uses of dredged material into local projects.

  11. High-resolution marine seismic reflection data from the San Francisco Bay area

    USGS Publications Warehouse

    Childs, Jonathan R.; Hart, Patrick; Bruns, Terry R.; Marlow, Michael S.; Sliter, Ray

    2000-01-01

    Between 1993 and 1997, the U.S. Geological Survey acquired high-resolution, marine seismic-reflection profile data across submerged portions of known and inferred upper crustal fault zones throughout the greater San Francisco Bay area. Surveys were conducted oversouth San Francisco Bay in the vicinity of the San Bruno shoal (roughly between the San Francisco and Oakland airports), over the offshore extension of the San Andreas fault system west of the Golden Gate, over the Hayward fault to Rodgers Creek fault step-over in San Pablo Bay, and over the Kirby Hills fault where it crosses the western Sacramento Delta. Reconnaissance profiles were acquired elsewhere throughout the San Francisco and San Pablo Bays. These data were acquired by the U.S. Geological Survey, Western Coastal and Marine Geology Team, under the auspices of the Central California/San Francisco Bay Earthquake Hazards Project. Analysis and interpretation of some of these profiles has been published by Marlow and others (1996, 1999). Further analysis and interpretation of these data are available in a USGS. Professional Paper Crustal Structure of the Coastal and Marine San Francisco Bay Region, T. Parsons, editor, http://geopubs.wr.usgs.gov/prof-paper/pp1658/ [link added 2012 mfd].

  12. Alkaline Phosphatase Activity in San Francisco and Monterey Bays

    NASA Astrophysics Data System (ADS)

    Nicholson, D. P.

    2002-12-01

    Phosphorus (P) is an essential nutrient utilized by all living organisms, and has been recognized as a limiting nutrient in some oceanic systems (Cotner et al., 1997; Karl et al., 1995; Michaels et al., 1996; Wu et al., 2000). However, relatively little is known about the extent of P limitation in natural environments, how P limitation varies spatially and temporally, and what determines how and when P becomes limiting (Benitez-Nelson, 2000). A more direct estimate of the degree of P limitation in a variety of oceanic systems is needed to better understand P cycling and dynamics within the ocean and how these have and will change in response to global climate and environmental perturbation. Accordingly, the objective this study is to assess the P-status of marine planktonic communities in Monterey and San Francisco Bays using the activity of alkaline phosphatase in the water column. Alkaline phosphatase (AP) is the most widely used enzyme that marine organisms use to hydrolize organic P compounds to biologically available orthophosphate. Accordingly it is expected that in areas where P is a limiting nutrient organisms will produce and release more AP to seawater so they can utilize the dissolved and particulate organic P compounds. Indeed it has been suggested that the AP activity is a reliable indicator of P-availability to planktonic communities (Ammerman and Azam, 1985; Cotner and Wetzel, 1991; Hong et al., 1998). High enzyme activities indicate low dissolved inorganic phosphate (DIP) availability while low levels suggest that DIP supply satisfies the community P-demand. This study examines AP activity in San Francisco and Monterey Bays over a 12 month period, from November, 2001 through November, 2002 using two enzyme assays. The study encompasses data from a three-station transect in Monterey Bay, at depths ranging from 0-60 meters. The stations range from coastal waters to open ocean depths of several thousand meters. In San Francisco Bay, surface water from

  13. San Francisco Bay Area Fault Observations Displayed in Google Earth

    NASA Astrophysics Data System (ADS)

    Lackey, H.; Hernandez, M.; Nayak, P.; Zapata, I.; Schumaker, D.

    2006-12-01

    According to the United States Geological Survey (USGS), the San Francisco Bay Area has a 62% probability of experiencing a major earthquake in the next 30 years. The Hayward fault and the San Andreas fault are the two main faults in the Bay Area that are capable of producing earthquakes of magnitude 6.7 or larger - a size that could profoundly affect many of the 7 million people who live in the Bay Area. The Hayward fault has a 27% probability of producing a major earthquake in next 30 years, and the San Andreas fault has a 21% probability. Our research group, which is part of the SF-ROCKS high school outreach program, studied the Hayward and San Andreas faults. The goal of our project was to observe these faults at various locations, measure the effects of creep, and to present the data in Google Earth, a freeware tool for the public to easily view and interact with these and other seismic-hazard data. We examined the Hayward and San Andreas faults (as mapped by USGS scientists) in Google Earth to identify various sites where we could possibly find evidence of fault creep. We next visited these sites in the field where we mapped the location using a hand- held Global Positioning System, identified and photographed fault evidence, and measured offset features with a ruler or tape measure. Fault evidence included en echelon shears in pavement, warped buildings, and offset features such as sidewalks. Fault creep offset measurements range from 1.5 19 cm. We also identified possible evidence of fault creep along the San Andreas fault in South San Francisco where it had not been previously described. In Google Earth, we plotted our field sites, linked photographs showing evidence of faulting, and included detailed captions to explain the photographs. We will design a webpage containing the data in a Keyhole Markup Language (KML) file format for display in Google Earth. Any interested person needs only to download the free version of Google Earth software and visit our

  14. Gendered sex work in the San Francisco tenderloin.

    PubMed

    Weinberg, M S; Shaver, F M; Williams, C J

    1999-12-01

    The variable "gender" rarely appears in prostitution research. Its inclusion raises the same questions brought up with respect to other areas of work: Is there a gendered perspective with respect to the work and are gender inequalities reflected in it? This study examines gender differences in the work of 140 sex workers in the San Francisco Tenderloin. As well as women and men who are workers, we include transgender workers (genetic males who present themselves as women), further accentuating differences by gender. Looking at work-specific characteristics, we find that women do not suffer inequities of income. They are, however, more prone to occupational hazards. Transgenders, who suffer the most societal discrimination, are closer to women than men in their work situation. Examining the sexuality of sex workers, the women are the least likely to enjoy sex with clients. Men report more sexual enjoyment with clients and transgenders are closer to the men in this regard. Few differences are, however, found in sexual pleasure in the personal lives of the women, men, and transgenders. A gender difference that stands out is that the men have more noncommercial sex partners than the women. Again, transgenders are more like the men, although various aspects of their condition make for some unique differences.

  15. Lessons from monitoring water quality in San Francisco Bay

    USGS Publications Warehouse

    Cloern, J.E.; Schraga, T.S.; Lopez, C.B.; Labiosa, R.

    2003-01-01

    Bay Area residents feel a sense of responsibility to protect San Francisco Bay and keep it healthy. Some even dream about the recovery of fish stocks so they can sustain commercial fishing once again inside the Bay. How is our Bay doing? Is it highly polluted or pretty clean? How does its health compare with other estuaries in the United States? Are things getting better or worse? Does costly wastewater treatment have benefits? What are the biggest threats to the Bay and how can we reduce or eliminate those threats? How will the Bay change in the future? These questions can only be answered with investments in study and monitoring, and they are the driving force behind the Regional Monitoring Program (RMP). We describe here some selected results from water quality surveillance conducted by the U.S. Geological Survey (USGS) as one component of the RMP. We present results as lessons about how the Bay works as a complex dynamic system, and we show how these lessons are relevant to the broad RMP objectives supporting Bay protection and management.

  16. Microbial diversity and carbon cycling in San Francisco Bay wetlands

    SciTech Connect

    Theroux, Susanna; Hartman, Wyatt; He, Shaomei; Tringe, Susannah

    2014-03-21

    Wetland restoration efforts in San Francisco Bay aim to rebuild habitat for endangered species and provide an effective carbon storage solution, reversing land subsidence caused by a century of industrial and agricultural development. However, the benefits of carbon sequestration may be negated by increased methane production in newly constructed wetlands, making these wetlands net greenhouse gas (GHG) sources to the atmosphere. We investigated the effects of wetland restoration on below-ground microbial communities responsible for GHG cycling in a suite of historic and restored wetlands in SF Bay. Using DNA and RNA sequencing, coupled with real-time GHG monitoring, we profiled the diversity and metabolic potential of wetland soil microbial communities. The wetland soils harbor diverse communities of bacteria and archaea whose membership varies with sampling location, proximity to plant roots and sampling depth. Our results also highlight the dramatic differences in GHG production between historic and restored wetlands and allow us to link microbial community composition and GHG cycling with key environmental variables including salinity, soil carbon and plant species.

  17. Reconstructing Contaminant Deposition in a San Francisco Bay Marina, California

    PubMed Central

    Love, Adam H.; Esser, Bradley K.; Hunt, James R.

    2010-01-01

    Two sediment cores were collected from a marina in the San Francisco Bay to characterize historical sediment contamination resulting from the direct discharge of industrial wastewater from Naval Air Station Alameda. Depth profiles of trace metals, petroleum hydrocarbons, and radionuclides were determined with a 12-cm spacing down to a depth of 120 cm. The chronology of sediment accumulation is established by depth profiles of sedimentary time markers in conjunction with information on site history. The traditional approach of determining sediment accumulation rates by measuring atmospheric 210Pb deposition was obscured by a larger source of 210Pb in the sediments from the decay of anthropogenic 226Ra, likely from luminescent paints used at this facility and released to the marina. The sedimentation rates inferred from the data indicate that the greatest amount of contamination by trace metals and petroleum hydrocarbons took place between 1940 and 1960. In addition, anthropogenic 226Ra activities are positively correlated with some of the contaminants in the sediments, allowing the wastewater discharged from the facility to be distinguished from baywide contamination. In locations such as this, where there is a complex history of contaminant deposition, a source-specific tracer may be the only feasible method of attributing historical contamination to a point source. PMID:20333267

  18. Indoor Air Quality Assessment of the San Francisco Federal Building

    SciTech Connect

    Apte, Michael; Bennett, Deborah H.; Faulkner, David; Maddalena, Randy L.; Russell, Marion L.; Spears, Michael; Sullivan, Douglas P; Trout, Amber L.

    2008-07-01

    An assessment of the indoor air quality (IAQ) of the San Francisco Federal Building (SFFB) was conducted on May 12 and 14, 2009 at the request of the General Services Administration (GSA). The purpose of the assessment was for a general screening of IAQ parameters typically indicative of well functioning building systems. One naturally ventilated space and one mechanically ventilated space were studied. In both zones, the levels of indoor air contaminants, including CO2, CO, particulate matter, volatile organic compounds, and aldehydes, were low, relative to reference exposure levels and air quality standards for comparable office buildings. We found slightly elevated levels of volatile organic compounds (VOCs) including two compounds often found in"green" cleaning products. In addition, we found two industrial solvents at levels higher than typically seen in office buildings, but the levels were not sufficient to be of a health concern. The ventilation rates in the two study spaces were high by any standard. Ventilation rates in the building should be further investigated and adjusted to be in line with the building design. Based on our measurements, we conclude that the IAQ is satisfactory in the zone we tested, but IAQ may need to be re-checked after the ventilation rates have been lowered.

  19. Ecology of San Francisco Bay tidal marshes: a community profile

    SciTech Connect

    Josselyn, M.

    1983-10-01

    San Francisco Bay, the largest estuary on the Pacific coast, historically contained an extensive contiguous system of salt and brackish tidal marshes. Urbanization has decreased tidal marshes by 95% and created a patchwork of remnant tidal marshes highly impacted by human activity. This document compiles available published and unpublished scientific literature to describe the current status and ecology of these remaining marshes. Variation in river inflow (strongly seasonal) and individual species salinity tolerances result in gradual and overlapping distributional ranges. Saline marshes are usually dominated by two halophytes: Pacific cordgrass and pickleweed and brackish marshes by bulrushes: Scirpus spp and cattails. Animals are distributed in relation to their salinity tolerances, vegetational habitat requirements, and tidal elevation within the marsh. Distribution of native species is complicated by competitive interactions and frequent dominance by introduced species. Preservation of remaining marshes requires careful management. Habitat requirements for selected species can be incorporated into management practices as well as carefully planned and executed restoration projects. 211 references, 45 figures, 29 tables.

  20. San Francisco Biofuel Program: Brown Grease to Biodiesel Demonstration

    SciTech Connect

    Jolis, Domènec; Martis, Mary; Jones, Bonnie; Miot, Alex; Ving, Karri; Sierra, Natalie; Niobi, Morayo

    2013-03-01

    Municipal wastewater treatment facilities have typically been limited to the role of accepting wastewater, treating it to required levels, and disposing of its treatment residuals. However, a new view is emerging which includes wastewater treatment facilities as regional resource recovery centers. This view is a direct result of increasingly stringent regulations, concerns over energy use, carbon footprint, and worldwide depletion of fossil fuel resources. Resources in wastewater include chemical and thermal energy, as well as nutrients, and water. A waste stream such as residual grease, which concentrates in the drainage from restaurants (referred to as Trap Waste), is a good example of a resource with an energy content that can be recovered for beneficial reuse. If left in wastewater, grease accumulates inside of the wastewater collection system and can lead to increased corrosion and pipe blockages that can cause wastewater overflows. Also, grease in wastewater that arrives at the treatment facility can impair the operation of preliminary treatment equipment and is only partly removed in the primary treatment process. In addition, residual grease increases the demand in treatment materials such as oxygen in the secondary treatment process. When disposed of in landfills, grease is likely to undergo anaerobic decay prior to landfill capping, resulting in the atmospheric release of methane, a greenhouse gas (GHG). This research project was therefore conceptualized and implemented by the San Francisco Public Utilities Commission (SFPUC) to test the feasibility of energy recovery from Trap Waste in the form of Biodiesel or Methane gas.

  1. San Francisco/Oakland Bay Bridge Welder Study: olfactory function.

    PubMed

    Antunes, Marcelo B; Bowler, Rosemarie; Doty, Richard L

    2007-09-18

    The sense of smell can be damaged by airborne xenobiotics, including aerosolized heavy metals, reflecting the direct exposure of its receptors to the outside environment. To determine whether professional welders working in confined spaces exhibit olfactory dysfunction. To determine whether such dysfunction, if present, is related to indices of metal exposure associated with welding, as well as measures of neurologic and neuropsychological function. The University of Pennsylvania Smell Identification Test (UPSIT) and a battery of neurologic and neuropsychological tests were administered to 43 welders who worked for 1 to 2 years on the San Francisco/Oakland Bay Bridge. Blood levels of Mn, Fe, Cu, and Pb were obtained. Relative to matched controls, the welders had significantly lower UPSIT scores, with a mean (SEM) of 29.51 (0.90) for welders and 36.55 (0.88) for controls. Eighty-eight percent scored below their individually matched controls. As in idiopathic Parkinson disease, the welders' olfactory test scores were unrelated to a broad spectrum of neurologic and neuropsychological test measures, as determined by principal components analysis. Although blood levels of Mn were associated with the time spent working on the bridge, workers with the highest Mn blood levels exhibited better olfactory function than those with the lowest Mn blood levels. The basis of this paradox, which has been observed previously, is unknown. Professional welders may be at risk for loss of smell function, although such loss seems to be unrelated to neurologic and neuropsychological test performance.

  2. Contaminant concentrations in sport fish from San Francisco Bay, 1997.

    PubMed

    Davis, Jay A; May, Michael D; Greenfield, Ben K; Fairey, Russell; Roberts, Cassandra; Ichikawa, Gary; Stoelting, Matt S; Becker, Jonathan S; Tjeerdema, Ronald S

    2002-10-01

    In 1997, seven sport fish species were sampled from seven popular fishing areas in San Francisco Bay. Mercury exceeded a human health screening value in 44 of 84 (52%) samples. All collected samples of leopard shark and striped bass exceeded the mercury screening value of 0.23 microg/g wet weight. PCBs exceeded the screening value in 51 of 72 (71%) samples. DDT, chlordane, and dieldrin, had lower numbers of samples above screening values: 16 of 72 (22%) for DDT, 11 of 72 (15%) for chlordanes, and 27 of 72 (37%) for dieldrin. Concentrations of PCBs and other trace organics were highest in white croaker and shiner surfperch, the two species with the highest fat content in their muscle tissue. Fish from one location, Oakland Harbor, had significantly elevated wet weight concentrations of mercury, PCBs, DDTs, and chlordanes compared to other locations. Removal of skin from white croaker fillets reduced lipid concentrations by 27-49% and concentrations of trace organics by 33-40%.

  3. Bottom boundary layer in south San Francisco Bay, California

    USGS Publications Warehouse

    Cheng, Ralph T.; Gartner, Jeffrey W.; Smith, Richard E.

    1997-01-01

    Detailed velocity distributions within the benthic turbulent boundary layer were measured by a Broad Band Acoustic Doppler Current Profiler (BB-ADCP) in South San Francisco Bay, California. In "mode 5", the BB-ADCP was able to measure velocity in 5 cm increments. The validation of these measurements was achieved by comparing the BB-ADCP measurements with the velocities measured by a Narrow Band Acoustic Doppler Current Profiler (NB-ADCP) in close proximity. There were thirty-three (33) velocity time-series measured by the BB-ADCP beginning at 7 cm above bed and extending to 175 cm in water column for about two weeks. The velocities from locations at 7 cm and 12 cm above the bed were determined to be of lower accuracy, and they were not used in estimates of friction velocity, u.. The values of u. at 95% confidence level were determined with relative error less than 20%. The time-series of u. varied with velocity outside of the boundary layer, and responded to spring-neap tidal variations. Attempts to use acoustic backscatterance echo intensity to measure suspended sediment concentration showed prom ise, and merit consideration in future studies.

  4. Near bottom velocity measurements in San Francisco Bay, California

    USGS Publications Warehouse

    Gartner, Jeffrey W.; Cheng, Ralph T.; ,

    1996-01-01

    The ability to accurately measure long-term time-series of tidal currents in bays and estuaries is critical in estuarine hydrodynamic studies. Accurate measurements of tidal currents near the air-water interface and in the bottom boundary layer remain difficult in spite of the significant advances in technology for measuring tidal currents which have been achieved in recent years. One of the objectives of this study is to demonstrate that turbulent mean velocity distribution within the bottom boundary layer can be determined accurately by using a broad-band acoustic Doppler current profiler (BB-ADCP). A suite of instruments, including two BB-ADCPs and four electromagnetic (EM) current meters was deployed in San Francisco Bay, California in an investigation of resuspension and transport of sediment during March 1995. The velocity measurements obtained in the bottom boundary layer by BB-ADCP were highly coherent (r2>0.94) with the velocity measurements obtained by EM current meters. During early March 1995, both BB-ADCPs and EM current meters recorded a very unusual flow event. Agreement among independent measurements by these instruments in describing such an atypical hydrodynamic occurrence further validates the velocity measurements obtained by BB-ADCP in the bottom boundary layer.

  5. Diversity of Denitrifying Bacteria in the San Francisco Bay

    NASA Astrophysics Data System (ADS)

    Atluri, A.; Lee, J.; Francis, C. A.

    2012-12-01

    We compared the diversity of communities of denitrifying bacteria from the San Francisco Bay to investigate whether environmental factors affect diversity. To do this, we studied the sequence diversity of the marker gene nirK. nirK codes for the enzyme nitrite reductase which helps reduce nitrite to nitric oxide, an important step in denitrification. Sediment samples were collected spatially from five different locations and temporally during the four different seasons along a salinity gradient in the bay. After collecting samples and extracting DNA from them, we used PCR to amplify our gene of interest, created clone libraries for sequencing, and compared phylogenetic trees from the different communities. Based on several phylogenetic analyses on our tree and environments, we saw that denitrifying bacteria from the North and Central Bay form distinct spatial clusters; Central Bay communities are very similar to each other, while communities from the North Bay are more distinct from each other and from communities in the Central Bay. Bacteria from site 8.1M (Carquinez Strait) showed the most cm-scale spatial diversity, and there was the most species richness during the winter. All this suggests that diversity of communities of denitrifying bacteria may be affected by spatial and temporal environmental factors.

  6. Occupation and adult gliomas in the San Francisco Bay Area.

    PubMed

    Krishnan, Geetha; Felini, Martha; Carozza, Susan E; Miike, Rei; Chew, Terri; Wrensch, Margaret

    2003-06-01

    The etiology of gliomas is not well understood. Some jobs might involve sustained and elevated exposures to carcinogens. This study compares lifetime job histories of 879 glioma cases diagnosed between August 1991 to April 1994 and May 1997 to August 1999 in the San Francisco Bay Area and 864 controls. Logistic analyses compared longest and ever held occupations of 1 year or more for all astrocytic and nonastrocytic cases and controls overall with adjustment for age, gender, and ethnicity and separately for men and women. Two-fold or higher or statistically significant elevated odds ratios were found overall and in men among those with longest held occupations, as firefighters, physicians, material moving equipment operators, and janitors; such elevated odds ratios were also observed for longest-held occupations among male motor vehicle operators and personal service workers and female messengers, legal/social service workers, electronic equipment operators, painters, and food processors. Odds ratios of 0.50 or less, but not statistically significant, were found for those with longest held jobs as writers/journalists, biological scientists, paper workers, mechanics, chemists, and photographers/photoprocessors. This study supports previously observed occupational associations and is one of the few studies with sufficient numbers to separately analyze occupations by gender.

  7. Steam, solarization, and tons of prevention: the San Francisco Public Utilities Commission's fight to contain Phytophthoras in San Francisco Bay area restoration sites

    Treesearch

    Greg Lyman; Jessica Appel; Mia Ingolia; Ellen Natesan; Joe Ortiz

    2017-01-01

    To compensate for unavoidable impacts associated with critical water infrastructure capital improvement projects, the San Francisco Public Utilities Commission (SFPUC) restored over 2,050 acres of riparian, wetland, and upland habitat on watershed lands in Alameda, Santa Clara, and San Mateo Counties. Despite strict bio-sanitation protocols, plant pathogens (...

  8. Handbook of Techniques and Guides for the Study of the San Francisco Bay-Delta-Estuary Complex, Part 6. Key to the Common Fishes of San Francisco Bay.

    ERIC Educational Resources Information Center

    Sikora, Bob

    Project MER (Marine Ecology Research) is aimed at improving environmental education in the San Francisco Bay Area schools. As part of meeting this goal, it is hoped that students and teachers can see the results of their efforts being put to practical use. This guide is the sixth of a series produced to help students and teachers gather data…

  9. Psychiatric Disorders and Substance Use in Homeless Youth: A Preliminary Comparison of San Francisco and Chicago

    PubMed Central

    Quimby, Ernika G.; Edidin, Jennifer P.; Ganim, Zoe; Gustafson, Erika; Hunter, Scott J.; Karnik, Niranjan S.

    2012-01-01

    Youth homelessness is a growing problem in the United States. The experience of homelessness appears to have numerous adverse consequences, including psychiatric and substance use disorders. This study compared the frequencies of psychiatric disorders, including substance use, between homeless youth (18–24 years-old) in San Francisco (N = 31) and Chicago (N = 56). Subjects were administered the Mini International Neuropsychiatric Interview (M.I.N.I.) to assess DSM-IV-TR diagnoses and substance use disorders. Eighty-seven percent of the San Francisco youth, and 81% of the Chicago youth met criteria for at least one M.I.N.I. psychiatric diagnosis. Nearly two-thirds of the youth in both samples met criteria for a mood disorder. Approximately one-third met criteria for an anxiety disorder. Thirty-two percent of the San Francisco sample and 18% of the Chicago met criteria for Antisocial Personality Disorder. Approximately 84% of the San Francisco youth and 48% of the Chicago youth met criteria for a substance-related disorder, and more substances were used by San Francisco youth. In conclusion, the high rate of psychiatric disorders in homeless youth provides clear evidence that the mental health needs of this population are significant. Implications are discussed. PMID:25379220

  10. Wave attenuation in the shallows of San Francisco Bay

    USGS Publications Warehouse

    Lacy, Jessica R.; MacVean, Lissa J.

    2016-01-01

    Waves propagating over broad, gently-sloped shallows decrease in height due to frictional dissipation at the bed. We quantified wave-height evolution across 7 km of mudflat in San Pablo Bay (northern San Francisco Bay), an environment where tidal mixing prevents the formation of fluid mud. Wave height was measured along a cross shore transect (elevation range−2mto+0.45mMLLW) in winter 2011 and summer 2012. Wave height decreased more than 50% across the transect. The exponential decay coefficient λ was inversely related to depth squared (λ=6×10−4h−2). The physical roughness length scale kb, estimated from near-bed turbulence measurements, was 3.5×10−3 m in winter and 1.1×10−2 m in summer. Estimated wave friction factor fw determined from wave-height data suggests that bottom friction dominates dissipation at high Rew but not at low Rew. Predictions of near-shore wave height based on offshore wave height and a rough formulation for fw were quite accurate, with errors about half as great as those based on the smooth formulation for fw. Researchers often assume that the wave boundary layer is smooth for settings with fine-grained sediments. At this site, use of a smooth fw results in an underestimate of wave shear stress by a factor of 2 for typical waves and as much as 5 for more energetic waves. It also inadequately captures the effectiveness of the mudflats in protecting the shoreline through wave attenuation.

  11. Sources of nitrogen and phosphorus to Northern San Francisco Bay

    USGS Publications Warehouse

    Hager, S.W.; Schemel, L.E.

    1992-01-01

    We studied nutrient sources to the Sacramento River and Suisun Bay (northern San Francisco Bay) and the influence which these sources have on the distributions of dissolved inorganic nitrogen (DIN) and dissolved reactive phosphorus (DRP) in the river and bay. We found that agricultural return flow drains and a municipal wastewater treatment plant were the largest sources of nutrients to the river during low river flow. The Sutter and Colusa agricultural drains contributed about 70% of the transport of DIN and DRP by the river above Sacramento (about 20% of the total transport by the river) between August 8 and September 26, 1985. Further downstream, the Sacramento Regional Wastewater Treatment Plant discharged DIN and DRP at rates that were roughly 70% of total DIN and DRP transport by the river at that time. Concentrations at Rio Vista on the tidal river below the Sacramento plant and at the head of the estuary were related to the reciprocals of the river flows, indicating the importance of dilution of the Sacramento waste by river flows. During very dry years, elevated DIN and DRP concentrations were observed in Suisun Bay. We used a steady-state, one-dimensional, single-compartment box model of the bay, incorporating terms for advection, exchange, and waste input, to calculate a residual rate for all processes not included in the model. We found that the residual for DIN was related to concentrations of chlorophyll a (Chl a). The residual for DRP was also related to Chl a at high concentrations of Chl a, but showed significant losses of DRP at low Chl a concentrations. These losses were typically equivalent to about 80% of the wastewater input rate. *** DIRECT SUPPORT *** A01BY057 00004 ?? 1992 Estuarine Research Federation.

  12. Benthic macrofauna data for San Francisco Bay, California, September 1986

    USGS Publications Warehouse

    Schemel, Laurence E.; Thompson, J.K.; Harmon, J.G.; Yost, B.T.

    1995-01-01

    Benthic macrofauna were collected during September 1986 to evaluate locations for long-term monitoring stations as part of the U.S. Geological Survey Regional Effects Monitoring Program in San Francisco Bay, California. Three to ten replicate samples were collected with a modified Van Veen sampler (0.05 m2 area) at ten locations. One box core sample (0.06 m2 area) was collected at seven to the ten locations. Six of the box core samples were split into an upper 10 cm sample and a deeper sample before analysis. Macrofauna specimens were identified to the lowest possible taxon, usually genus and species, then counted. An average of 88 percent of the benthic macrofauna specimens were identified to the species level. The fraction identified varied among stations from 54 to 98 percent. Nematodes and oligochaetes accounted for most of the unidentified specimens. Relative to the total number of species identified in five replicates at each location, an average of 90 percent of the species were collected with three replicates. In general, species with high to moderate abundances were present in all replicates, and species collected only after three or more replicates averaged less than one specimen per replicate. Results from the box cores showed that the dominant species were most abundant in the upper 10 cm, the depth of sediment that can be adequately sampled with a modified Van Veen sampler. On the basis of the number of species and their abundances at each location, seven of the ten locations were selected for sampling in the regular program, which began in March 1987.

  13. Sources of nitrogen and phosphorous to northern San Francisco Bay

    USGS Publications Warehouse

    Hager, Stephen W.; Schemel, Laurence E.

    1992-01-01

    We studied nutrient sources to the Sacramento River and Suisun Bay (northern San Francisco Bay) and the influence which these sources have on the distributions of dissolved inorganic nitrogen (DIN) and dissolved reactive phosphorus (DRP) in the river and bay. We found that agricultural return flow drains and a municipal wastewater treatment plant were the largest sources of nutrients to the river during low river flow. The Sutter and Colusa agricultural drains contributed about 70% of the transport of DIN and DRP by the river above Sacramento (about 20% of the total transport by the river) between August 8 and September 26, 1985. Further downstream, the Sacramento Regional Wastewater Treatment Plant discharged DIN and DRP at rates that were roughly 70% of total DIN and DRP transport by the river at that time. Concentrations at Rio Vista on the tidal river below the Sacramento plant and at the head of the estuary were related to the reciprocals of the river flows, indicating the importance of dilution of the Sacramento waste by river flows. During very dry years, elevated DIN and DRP concentrations were observed in Suisun Bay. We used a steady-state, one-dimensional, single-compartment box model of the bay, incorporating terms for advection, exchange, and waste input, to calculate a residual rate for all processes not included in the model. We found that the residual for DIN was related to concentrations of chlorophylla (Chla). The residual for DRP was also related to Chla at high concentrations of Chla, but showed significant losses of DRP at low Chla concentrations. These losses were typically equivalent to about 80% of the wastewater input rate.

  14. Phytoplankton community ecology: Principles applied in San Francisco Bay

    USGS Publications Warehouse

    Cloern, J.E.; Dufford, R.

    2005-01-01

    In his seminal 1961 paper 'The paradox of the plankton' Am Nat 95:137-147, G. E. Hutchinson asked why many species of phytoplankton can coexist while competing for a small number of limiting resources in an unstructured habitat. Hutchinson anticipated the resolution of his paradox, recognizing that communities are organized by processes beyond resource competition including species interactions, habitat variability and dispersal. Since 1961 we have made fundamental discoveries that have revolutionized our conceptual understanding of pelagic ecology, including (1) habitat heterogeneity at all scales relevant to plankton population dynamics, (2) community shifts in response to global climate cycles, (3) fast and selective predation as a powerful top-down force to shape phytoplankton communities, (4) turbulent mixing as a physical process that selects species on the basis of their size and form, (5) mixotrophy that allows some algal species to tap organic nutrient pools and function at multiple trophic levels, (6) taxon-specific life cycles including alternating vegetative and resting stages, and (7) the pelagic as an open system where communities are continually reshaped by species immigration. Here we synthesize these discoveries to show how they validate and amplify Hutchinson's hypothesis that phytoplankton communities are assembled by many processes. Our synthesis is built around observations of phytoplankton species composition from a decade of study in San Francisco Bay, used as a case study to illustrate the contemporary principles of phytoplankton community ecology. We apply these principles to address 2 central questions: (1) What processes assemble phytoplankton communities? (2) How does phytoplankton community composition influence ecosystem functions such as production in pelagic and benthic food webs?

  15. Identifying syphilis risk networks through venue attendance in San Francisco.

    PubMed

    Stephens, Sally C; Fann, Charles K; Strona, Frank V; Wolf, Wendy; Cohen, Stephanie E; Philip, Susan S; Bernstein, Kyle T

    2014-05-01

    Prioritizing interventions for patients with syphilis who are part of large or interconnected sexual networks may be high yield for partner services, and identifying venues named by patients with syphilis who report high numbers of partners may help identify such networks. In this analysis, we explore differences between interviewed patients with early syphilis regarding where they met sex partners. With a cross-sectional design, we examined the distribution of total reported sex partners from male index patients with early syphilis interviewed through the San Francisco Department of Public Health partner services program and the self-reported venues named as places they met sex partners. Based on the median number of total partners among male cases of syphilis who named each venue, we categorized venues into 3 levels of partner frequency: high (>15 partners reported), medium (6-15 partners reported), and low (<6 partners reported). Interviewed patients with early syphilis were then classified into these venue categories, and sociodemographic and risk behaviors from electronic medical records and interviews were compared using χ tests. In 2011, 433 male patients with early syphilis named 32 venues. One hundred forty-three (32.3%) patients were categorized as high, 226 (51.0%) as medium, and 74 (16.7%) as low partner frequency venue users. Patients with early syphilis who reported meeting partners at high partner frequency venues were generally older, more likely to be white, have a previous syphilis infection, use methamphetamines in the previous year, and be HIV infected (all P < 0.05) compared with those who reported meeting partners at medium-frequency and low-frequency venues. Venues where partners are met may be an appropriate proxy for network membership. Targeting additional resources, outreach, and services to clients who attend high-frequency venues may have a positive impact on syphilis prevention efforts.

  16. EPA Administrator McCarthy to announce San Franciscos City Hall becoming the nations oldest building to receive LEED Platinum Green Building Certification

    EPA Pesticide Factsheets

    SAN FRANCISCO - U.S. Environmental Protection Agency Administrator Gina McCarthy will join San Francisco officials, to announce City Hall becoming the oldest building in the nation to receive LEED Platinum Certification for Existing Buildings.

  17. Environmental Analysis Focusing on Nitrate and Phosphate of Lake Merced, San Francisco, California

    NASA Astrophysics Data System (ADS)

    Chavez, A.; de La Cruz, C.; Diaz, R.; Snell, J.; Bissell, M.; Rawley, A.; Kirwin, J. P.

    2007-12-01

    Lake Merced is located in the southwest region of San Francisco. The lake is used for recreation by many San Francisco residents, is home to many animals and plants and is an emergency water source for the City of San Francisco. We analyzed the lake for nitrate and phosphate concentrations to determine the ecological health of the lake. High levels of these chemicals increase the risk of eutrophication. Our study finds that the amount of each chemical is below maximum contaminant levels (MCLs). We tested for arsenic, chromium, copper, lead and zinc and found that only arsenic and lead were above the MCL. Additionally, we identified the soils and sands, tested the soil for nitrate and phosphate levels at two sites near large amount of wildlife. We also identified the native and invasive plants around the lake and found that the lake contains a majority of invasive plants. Our overall results show that the lake is healthy but could be improved.

  18. Predicted liquefaction of East Bay fills during a repeat of the 1906 San Francisco earthquake

    USGS Publications Warehouse

    Holzer, T.L.; Blair, J.L.; Noce, T.E.; Bennett, M.J.

    2006-01-01

    Predicted conditional probabilities of surface manifestations of liquefaction during a repeat of the 1906 San Francisco (M7.8) earthquake range from 0.54 to 0.79 in the area underlain by the sandy artificial fills along the eastern shore of San Francisco Bay near Oakland, California. Despite widespread liquefaction in 1906 of sandy fills in San Francisco, most of the East Bay fills were emplaced after 1906 without soil improvement to increase their liquefaction resistance. They have yet to be shaken strongly. Probabilities are based on the liquefaction potential index computed from 82 CPT soundings using median (50th percentile) estimates of PGA based on a ground-motion prediction equation. Shaking estimates consider both distance from the San Andreas Fault and local site conditions. The high probabilities indicate extensive and damaging liquefaction will occur in East Bay fills during the next M ??? 7.8 earthquake on the northern San Andreas Fault. ?? 2006, Earthquake Engineering Research Institute.

  19. Sediment Distribution in Central San Francisco Bay in the Vicinity of Raccoon Strait.

    NASA Astrophysics Data System (ADS)

    Parker, K. A.; White, L. D.; Vavro, M.; Tran, J.; Basconcillo, N.; Kheradyar, T.; Pestrong, R.

    2003-12-01

    We collected sediment grab samples from twenty-one sites distributed within a 2-km2 area in Central San Francisco Bay, including Raccoon Strait, which is located between the Tiburon Peninsula and Angel Island. We gathered these samples in May and August of 2003, dried and disaggregated them using a Gilson Sieve Tester, and analyzed the sediments by weight percent. Our purpose in monitoring sediment distributions over time in Central San Francisco Bay is to gain understanding of the oceanographic dynamics of the bay-delta estuarine system. Our initial results indicate that grain sizes range from > 2 millimeters to < 125 microns with coarser samples located at the entrance to Raccoon Strait. We anticipate collecting samples from these twenty-one sites in November of 2003, and eventually relating the sediment distribution patterns to seasonal variations in transport. This study is part of a larger-scale project involving bedform migration and current transport in Central San Francisco Bay.

  20. Increasing Hydrogen Ion Activity of Water in Two Reservoirs Supplying the San Francisco Bay Area, California

    NASA Astrophysics Data System (ADS)

    McColl, J. G.

    1981-10-01

    The hydrogen ion activity (H+) of water in two Sierra Nevada reservoirs (Pardee and Hetch Hetchy) that supply the San Francisco Bay area has been increasing with time over the period 1954-1979. This conclusion is based on weekly measurements ofpH at the two reservoirs and is supported by measurements of alkalinity which decreased at Pardee over the period 1944-1979. Based on linear models, the rate of the increasing (H+) was the same at both reservoirs, and (H+) varied concomitantly from year to year, suggesting a common, general cause. Mean monthly variation in (H+) corresponded to mean monthly variation in atmospheric pollution from a nine-county area around San Francisco Bay. The most likely cause of the increasing (H+) of reservoir waters is NOx from automobile exhausts primarily from the San Francisco Bay area.

  1. Transforming a traditional safety net into a coordinated care system: lessons from healthy San Francisco.

    PubMed

    Katz, Mitchell H; Brigham, Tangerine M

    2011-02-01

    Since 2007, San Francisco, California, has transformed its traditional safety-net health care "system"-in reality, an amalgam of a public hospital, private nonprofit hospitals, public and private clinics, and community health centers-into a comprehensive health care program called Healthy San Francisco. The experience offers lessons in how other local safety-net systems can prepare for profound changes under health reform. By July 2010, 53,546 adults had enrolled (70-89 percent of uninsured adults in San Francisco), and satisfaction is high (94 percent). Unnecessary emergency department visits were less common among enrollees (7.9 percent) than among Medicaid managed care recipients (15 percent). These findings indicate that other safety-net systems would do well to invest in information technology, establish primary care homes, increase coordination of care, and improve customer service as provisions of the national health care reform law phase in.

  2. Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2008

    USGS Publications Warehouse

    Buchanan, Paul A.; Morgan, Tara L.

    2011-01-01

    Suspended-sediment concentration data were collected by the U.S. Geological Survey in San Francisco Bay during water year 2008 (October 1, 2007–September 30, 2008). Optical sensors and water samples were used to monitor suspended-sediment concentration at two sites in Suisun Bay, two sites in Central San Francisco Bay, and one site in South San Francisco Bay. Sensors were positioned at two depths at most sites to help define the vertical variability of suspended sediments. Water samples were collected periodically and analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the output of the optical sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes, in graphs, the suspended-sediment concentration data collected from October 2007 through September 2008. Calibration curves and plots of the processed data for each sensor also are presented.

  3. Summary of Suspended-Sediment Concentration Data, San Francisco Bay, California, Water Year 2007

    USGS Publications Warehouse

    Buchanan, Paul A.; Morgan, Tara L.

    2010-01-01

    Suspended-sediment concentration data were collected by the U.S. Geological Survey in San Francisco Bay during water year 2007 (October 1, 2006-September 30, 2007). Optical sensors and water samples were used to monitor suspended-sediment concentration at two sites in Suisun Bay, two sites in Central San Francisco Bay, and one site in South San Francisco Bay. Sensors were positioned at two depths at most sites to help define the vertical variability of suspended sediments.Water samples were collected periodically and analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the output of the optical sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes, in graphs, the suspended-sediment concentration data collected from October 2006 through September 2007. Calibration curves and plots of the processed data for each sensor also are presented.

  4. Summary of Suspended-Sediment Concentration Data, San Francisco Bay, California, Water Year 2005

    USGS Publications Warehouse

    Buchanan, Paul A.; Lionberger, Megan A.

    2007-01-01

    Suspended-sediment concentration data were collected by the U.S. Geological Survey in San Francisco Bay during water year 2005 (October 1, 2004-September 30, 2005). Optical sensors and water samples were used to monitor suspended-sediment concentration at two sites in Suisun Bay, three sites in San Pablo Bay, two sites in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned at two depths at most sites. Water samples were collected periodically and analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the output of the optical sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes, in graphs, the suspended-sediment concentration data collected from October 2004 through September 2005. Calibration curves and plots of the processed data for each sensor also are presented.

  5. Summary of suspended-sediment concentration data, San Francisco Bay, California, Water Year 2003

    USGS Publications Warehouse

    Buchanan, Paul A.; Ganju, Neil K.

    2005-01-01

    Suspended-sediment concentration data were collected in San Francisco Bay during water year 2003 (October 1, 2002-September 30, 2003). Optical sensors and water samples were used to monitor suspended-sediment concentration at two sites in Suisun Bay, three sites in San Pablo Bay, one site in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned at two depths at most sites. Water samples were collected periodically and analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the output of the optical sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes the suspended-sediment concentration data collected from October 2002 through September 2003. Calibration curves and plots of edited data for each sensor also are presented.

  6. Summary of Suspended-Sediment Concentration Data, San Francisco Bay, California, Water Year 2001

    USGS Publications Warehouse

    Buchanan, Paul A.; Ganju, Neil K.

    2003-01-01

    Suspended-sediment concentration data were collected in San Francisco Bay during water year 2001 (October 1, 2000-September 30, 2001). Optical backscatterance sensors and water samples were used to monitor suspended sediment at two sites in Suisun Bay, three sites in San Pablo Bay, two sites in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned at two depths at most sites. Water samples were collected periodically and were analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the electrical output of the optical backscatterance sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes the suspended-sediment concentration data collected from October 2000 through September 2001. Calibration curves and plots of edited data for each sensor also are presented.

  7. Summary of Suspended-Sediment Concentration Data, San Francisco Bay, California, Water Year 2002

    USGS Publications Warehouse

    Buchanan, Paul A.; Ganju, Neil K.

    2004-01-01

    Suspended-sediment concentration data were collected in San Francisco Bay during water year 2002 (October 1, 2001-September 30, 2002). Optical backscatterance sensors and water samples were used to monitor suspended sediment at two sites in Suisun Bay, three sites in San Pablo Bay, two sites in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned at two depths at most sites. Water samples were collected periodically and were analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the electrical output of the optical backscatterance sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes the suspended-sediment concentration data collected from October 2001 through September 2002. Calibration curves and plots of edited data for each sensor also are presented.

  8. 20. San FranciscoOakland Bay Bridge contract recipients, April 28, 1933, ...

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

    20. San Francisco-Oakland Bay Bridge contract recipients, April 28, 1933, photographer unknown. Standing, left to right: Edward J. Schneider, Columbia Steel Corporation; C.C. Horton, Healy-Tibbitts Construction Company; Henry J. Kaiser, Bridge Builders, Inc.; Albert Huber, Clinton Construction Company; Allan McDonald, Transbay Construction Company; C.C. Carleton, Chief, Division of Contracts and Rights of Way, California Department of Public Works. Seated, left to right: Henry J. Brunnier, Consulting Engineer, Member of Consulting Board, San Francisco-Oakland Bay Bridge; Charles E. Andrew, Bridge Engineer, San Francisco-Oakland Bay Bridge; Earl Lee Kelly, Director, California Department of Public Works; Harrison S. Robinson, President, Financial ... - Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humboldt County, CA

  9. Earliest record of the invasive Foraminifera Trochammina hadai in San Francisco Bay, California, USA

    USGS Publications Warehouse

    McGann, Mary

    2014-01-01

    In 1995, Trochammina hadai, a benthic Foraminifera prevalent in Japanese estuaries, was found in San Francisco Bay, California, USA. Subsequent field investigations determined that the species was also present in nearly all of the major ports and estuaries along the western United States. Because of its widespread colonization, it is of interest to determine when T. hadai first appeared as an invasive in the coastal regions of the North Pacific. In San Francisco Bay, the species was not found in 404 surface samples collected between 1930 and 1981. In 1983, however, a grab sediment sample from one of four sites in the southern portion of the bay contained T. hadai. This site was the most northern of the four and contained 12 specimens of the invasive, comprising 1.5% of the assemblage. This is the earliest appearance on record of T. hadai in San Francisco Bay.

  10. EPA awards $400,000 brownfields cleanup grant for public park in San Franciscos Bayview Hunters Point neighborhood

    EPA Pesticide Factsheets

    SAN FRANCISCO - The U.S. Environmental Protection Agency announced today that the City and County of San Francisco will receive $400,000 in federal funds to clean up the site of a future public park in the Bayview Hunters Point neighborhood. San Fra

  11. 75 FR 8106 - Don Edwards San Francisco Bay National Wildlife Refuge, Alameda, Santa Clara, and San Mateo...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    ... Fish and Wildlife Service Don Edwards San Francisco Bay National Wildlife Refuge, Alameda, Santa Clara... located in Alameda, Santa Clara, and San Mateo Counties of California. We provide this notice in..., we initiate our process for developing a CCP for Don Edwards San Francisco Bay NWR in Alameda,...

  12. 77 FR 43161 - Special Local Regulation; San Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-24

    ... Fleetweek Parade of Ships and Blue Angels Demonstration AGENCY: Coast Guard, DHS. ACTION: Interim rule and... Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels Demonstration. The amendment will increase the... for the San Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels Demonstration (``SLR'') is...

  13. 77 FR 32716 - Price for the 2012 American Eagle San Francisco Two-Coin Silver Proof Set

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY United States Mint Price for the 2012 American Eagle San Francisco Two-Coin Silver Proof Set AGENCY... announcing the price of the 2012 American Eagle San Francisco Two-Coin Silver Proof Set. The coin set will...

  14. Homeless Gay and Transgender Youth of Color in San Francisco: "No One Likes Street Kids"--Even in the Castro

    ERIC Educational Resources Information Center

    Reck, Jen

    2009-01-01

    This study, focused on five transgender and gay youth of color from San Francisco, explored how family problems, poverty, homophobia, and transphobia propelled them into homelessness and made gay-friendly spaces and resources especially meaningful to them. These young people describe seeking support in San Francisco's well-known gay enclave, the…

  15. 33 CFR 165.1183 - Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports, Monterey Bay and Humboldt Bay... Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports,...

  16. 33 CFR 165.1183 - Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports, Monterey Bay and Humboldt Bay... Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports,...

  17. 33 CFR 165.1183 - Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports, Monterey Bay and Humboldt Bay... Security Zones; tankers, cruise ships, and High Value Assets, San Francisco Bay and Delta Ports,...

  18. Homeless Gay and Transgender Youth of Color in San Francisco: "No One Likes Street Kids"--Even in the Castro

    ERIC Educational Resources Information Center

    Reck, Jen

    2009-01-01

    This study, focused on five transgender and gay youth of color from San Francisco, explored how family problems, poverty, homophobia, and transphobia propelled them into homelessness and made gay-friendly spaces and resources especially meaningful to them. These young people describe seeking support in San Francisco's well-known gay enclave, the…

  19. 76 FR 9709 - Water Quality Challenges in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ... and San Joaquin Rivers.\\1\\ The Bay Delta Estuary is the hub of California's water distribution system... AGENCY 40 CFR Chapter I RIN-2009-ZA00 Water Quality Challenges in the San Francisco Bay/Sacramento-San... water quality conditions affecting aquatic resources in the San Francisco Bay/ Sacramento-San Joaquin...

  20. U.S. EPA and San Francisco Department of the Environment Spotlight Super Bowl Efforts to Feed the Hungry

    EPA Pesticide Factsheets

    SAN FRANCISCO - On Wednesday, February 3, U.S. EPA Regional Administrator Jared Blumenfeld will be joined by San Francisco Department of the Environment Director Debbie Raphael, Food Runners Director Mary Risley, and HealthRIGHT 360 CEO Vitka Eisen to dis

  1. Estimates of suspended sediment entering San Francisco Bay from the Sacramento and San Joaquin Delta, San Francisco Bay, California

    NASA Astrophysics Data System (ADS)

    McKee, Lester J.; Ganju, Neil K.; Schoellhamer, David H.

    2006-05-01

    This study demonstrates the use of suspended-sediment concentration (SSC) data collected at Mallard Island as a means of determining suspended-sediment load entering San Francisco Bay from the Sacramento and San Joaquin River watersheds. Optical backscatter (OBS) data were collected every 15 min during water years (WYs) 1995-2003 and converted to SSC. Daily fluvial advective sediment load was estimated by combining estimated Delta outflow with daily averaged SSC. On days when no data were available, SSC was estimated using linear interpolation. A model was developed to estimate the landward dispersive load using velocity and SSC data collected during WYs 1994 and 1996. The advective and dispersive loads were summed to estimate the total load. Annual suspended-sediment load at Mallard Island averaged 1.2±0.4 Mt (million metric tonnes). Given that the average water discharge for the 1995-2003 period was greater than the long -term average discharge, it seems likely that the average suspended-sediment load may be less than 1.2±0.4 Mt. Average landward dispersive load was 0.24 Mt/yr, 20% of the total. On average during the wet season, 88% of the annual suspended-sediment load was discharged through the Delta and 43% occurred during the wettest 30-day period. The January 1997 flood transported 1.2 Mt of suspended sediment or about 11% of the total 9-year load (10.9 Mt). Previous estimates of sediment load at Mallard Island are about a factor of 3 greater because they lacked data downstream from riverine gages and sediment load has decreased. Decreasing suspended-sediment loads may increase erosion in the Bay, help to cause remobilization of buried contaminants, and reduce the supply of sediment for restoration projects.

  2. Estimates of suspended sediment entering San Francisco Bay from the Sacramento and San Joaquin Delta, San Francisco Bay, California

    USGS Publications Warehouse

    McKee, L.J.; Ganju, N.K.; Schoellhamer, D.H.

    2006-01-01

    This study demonstrates the use of suspended-sediment concentration (SSC) data collected at Mallard Island as a means of determining suspended-sediment load entering San Francisco Bay from the Sacramento and San Joaquin River watersheds. Optical backscatter (OBS) data were collected every 15 min during water years (WYs) 1995-2003 and converted to SSC. Daily fluvial advective sediment load was estimated by combining estimated Delta outflow with daily averaged SSC. On days when no data were available, SSC was estimated using linear interpolation. A model was developed to estimate the landward dispersive load using velocity and SSC data collected during WYs 1994 and 1996. The advective and dispersive loads were summed to estimate the total load. Annual suspended-sediment load at Mallard Island averaged 1.2??0.4 Mt (million metric tonnes). Given that the average water discharge for the 1995-2003 period was greater than the long -term average discharge, it seems likely that the average suspended-sediment load may be less than 1.2??0.4 Mt. Average landward dispersive load was 0.24 Mt/yr, 20% of the total. On average during the wet season, 88% of the annual suspended-sediment load was discharged through the Delta and 43% occurred during the wettest 30-day period. The January 1997 flood transported 1.2 Mt of suspended sediment or about 11% of the total 9-year load (10.9 Mt). Previous estimates of sediment load at Mallard Island are about a factor of 3 greater because they lacked data downstream from riverine gages and sediment load has decreased. Decreasing suspended-sediment loads may increase erosion in the Bay, help to cause remobilization of buried contaminants, and reduce the supply of sediment for restoration projects. ?? 2005 Elsevier B.V. All rights reserved.

  3. Long-period building response to earthquakes in the San Francisco Bay Area

    USGS Publications Warehouse

    Olsen, A.H.; Aagaard, B.T.; Heaton, T.H.

    2008-01-01

    This article reports a study of modeled, long-period building responses to ground-motion simulations of earthquakes in the San Francisco Bay Area. The earthquakes include the 1989 magnitude 6.9 Loma Prieta earthquake, a magnitude 7.8 simulation of the 1906 San Francisco earthquake, and two hypothetical magnitude 7.8 northern San Andreas fault earthquakes with hypocenters north and south of San Francisco. We use the simulated ground motions to excite nonlinear models of 20-story, steel, welded moment-resisting frame (MRF) buildings. We consider MRF buildings designed with two different strengths and modeled with either ductile or brittle welds. Using peak interstory drift ratio (IDR) as a performance measure, the stiffer, higher strength building models outperform the equivalent more flexible, lower strength designs. The hypothetical magnitude 7.8 earthquake with hypocenter north of San Francisco produces the most severe ground motions. In this simulation, the responses of the more flexible, lower strength building model with brittle welds exceed an IDR of 2.5% (that is, threaten life safety) on 54% of the urban area, compared to 4.6% of the urban area for the stiffer, higher strength building with ductile welds. We also use the simulated ground motions to predict the maximum isolator displacement of base-isolated buildings with linear, single-degree-of-freedom (SDOF) models. For two existing 3-sec isolator systems near San Francisco, the design maximum displacement is 0.5 m, and our simulations predict isolator displacements for this type of system in excess of 0.5 m in many urban areas. This article demonstrates that a large, 1906-like earthquake could cause significant damage to long-period buildings in the San Francisco Bay Area.

  4. USGS measurements of water quality in San Francisco Bay (CA), 1969-2015

    USGS Publications Warehouse

    Cloern, James E.; Schraga, Tara

    2016-01-01

    The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. This Data Release makes available all measurements made from 1969 through 2015. Water-quality constituents include salinity, temperature, light attenuation coefficient, and concentrations of chlorophyll-a, dissolved oxygen, suspended particulate matter, nitrate, nitrite, ammonium, silicate and phosphate. Water samples are collected at 37 fixed sampling locations along a 145-km transect from lower South San Francisco Bayo to the lower Sacramento River. A map of sampling locations is available on the project website at: https://sfbay.wr.usgs.gov/access/wqdata/overview/wherewhen/stnmap.html.

  5. Nowcast model for hazardous material spill prevention and response, San Francisco Bay, California

    USGS Publications Warehouse

    Cheng, Ralph T.; Wilmot, Wayne L.; Galt, Jerry A.

    1997-01-01

    The National Oceanic and Atmospheric Administration (NOAA) installed the Physical Oceanographic Real-time System (PORTS) in San Francisco Bay, California, to provide real-time observations of tides, tidal currents, and meteorological conditions to, among other purposes, guide hazardous material spill prevention and response. Integrated with nowcast modeling techniques and dissemination of real-time data and the nowcasting results through the Internet on the World Wide Web, emerging technologies used in PORTS for real-time data collection forms a nowcast modeling system. Users can download tides and tidal current distribution in San Francisco Bay for their specific applications and/or for further analysis.

  6. Health, Traffic, and Environmental Justice: Collaborative Research and Community Action in San Francisco, California

    PubMed Central

    Sciammas, Charlie; Seto, Edmund; Bhatia, Rajiv; Rivard, Tom

    2009-01-01

    Health impacts on neighborhood residents from transportation systems can be an environmental justice issue. To assess the effects of transportation planning decisions, including the construction of an intraurban freeway, on residents of the Excelsior neighborhood in southeast San Francisco, PODER (People Organizing to Demand Environmental and Economic Rights), a local grassroots environmental justice organization; the San Francisco Department of Public Health; and the University of California, Berkeley, collaborated on participatory research. We used our findings regarding traffic-related exposures and health hazards in the area to facilitate community education and action to address transportation-related health burdens on neighborhood residents. PMID:19890147

  7. Physical and chemical data for northern San Francisco Bay, California, September through November, 1984

    USGS Publications Warehouse

    Ota, Allan Y.; Schemel, L.E.; Hager, S.W.

    1986-01-01

    This report presents physical and chemical data for northern San Francisco Bay waters. Samples were collected during the late summer and fall of 1984 during six cruises at near-two-week intervals. Bay waters were sampled at designated (historical) stations and selected salinitis along the deep channel of northern San Francisco Bay. Measurements included temperature, salinity, turbidity, in vivo fluorescence, chlorophyll a, alkalinity, suspended particulate matter, dissolved organic carbon, and dissolved inorganic nutrients: nitrite, nitrate + nitrite, ammonium, dissolved silica, and ortho-phosphate. Numerical results are tabulated and methods are described. (USGS)

  8. Seismic evidence for a lower-crustal detachment beneath San Francisco Bay, California

    USGS Publications Warehouse

    Brocher, T.M.; McCarthy, J.; Hart, P.E.; Holbrook, W.S.; Furlong, K.P.; McEvilly, T.V.; Hole, J.A.; Klemperer, S.L.

    1994-01-01

    Results from the San Francisco Bay area seismic imaging experiment (BASIX) reveal the presence of a prominent lower crustal reflector at a depth of ~ 15 kilometers beneath San Francisco and San Pablo bays. Velocity analyses indicate that this reflector marks the base of Franciscan assemblage rocks and the top of a mafic lower crust. Because this compositional contrast would imply a strong rheological contrast, this interface may correspond to a lower crustal detachment surface. If so, it may represent a subhorizontal segment of the North America and Pacific plate boundary proposed by earlier thermomechanical and geological models.

  9. ASTER First Views of San Francisco River, Brazil - Visible/near Infrared VNIR Image monochrome

    NASA Image and Video Library

    2000-03-11

    This image of the San Francisco River channel, and its surrounding flood zone, in Brazil was acquired by band 3N of ASTER's Visible/Near Infrared sensor. The surrounding area along the river channel in light gray to white could be covered by dense tropical rain forests. The water surface of the San Francisco River shows rather gray color as compared to small lakes and tributaries, which could indicate that the river water is contaminated by suspended material. The size of image: 20 km x 20 km approx., ground resolution 15 m x 15 m approximately. http://photojournal.jpl.nasa.gov/catalog/PIA02451

  10. Anthropogenic influences on shoreline and nearshore evolution in the San Francisco Bay coastal system

    USGS Publications Warehouse

    Dallas, K.L.; Barnard, P.L.

    2011-01-01

    Analysis of four historical bathymetric surveys over a 132-year period has revealed significant changes to the morphology of the San Francisco Bar, an ebb-tidal delta at the mouth of San Francisco Bay estuary. From 1873 to 2005 the San Francisco Bar vertically-eroded an average of 80 cm over a 125 km2 area, which equates to a total volume loss of 100 ± 52 million m3 of fine- to coarse-grained sand. Comparison of the surveys indicates the entire ebb-tidal delta contracted radially, with the crest moving landward an average of 1 km. Long-term erosion of the ebb-tidal delta is hypothesized to be due to a reduction in the tidal prism of San Francisco Bay and a decrease in coastal sediment supply, both as a result of anthropogenic activities. Prior research indicates that the tidal prism of the estuary was reduced by 9% from filling, diking, and sedimentation. Compilation of historical records dating back to 1900 reveals that a minimum of 200 million m3 of sediment has been permanently removed from the San Francisco Bay coastal system through dredging, aggregate mining, and borrow pit mining. Of this total, ~54 million m3 of sand-sized or coarser sediment was removed from central San Francisco Bay. With grain sizes comparable to the ebb-tidal delta, and its direct connection to the bay mouth, removal of sediments from central San Francisco Bay may limit the sand supply to the delta and open coast beaches. SWAN wave modeling illustrates that changes to the morphology of the San Francisco Bar have altered the alongshore wave energy distribution at adjacent Ocean Beach, and thus may be a significant factor in a persistent beach erosion ‘hot spot’ occurring in the area. Shoreline change analyses show that the sandy shoreline in the shadow of the ebb-tidal delta experienced long-term (1850s/1890s to 2002) and short-term (1960s/1980s to 2002) accretion while the adjacent sandy shoreline exposed to open-ocean waves experienced long-term and short-term erosion. Therefore

  11. San Francisco 's Golden Gate: A bridge between historically distinct coyote (Canis latrans) populations?

    USGS Publications Warehouse

    Sacks, Benjamin N.; Ernest, Holly B.; Boydston, Erin E.

    2006-01-01

    Although coyotes (Canis latrans) are wellknown for their adaptability to human-modified landscapes (Riley et al. 2003), as with any medium to large-sized carnivore, they typically avoid highly urbanized areas (Crooks 2002), preferring instead to use habitat fragments linked by vegetated corridors (Tigas et al. 2002). However, recent observations of coyotes in San Francisco indicate their willingness to traverse even the most densely urbanized terrain (Rubenstein 2003). Herein we use DNA to show, in an extreme example, that an adult male coyote caught in the northern tip of the San Francisco peninsula traversed the 2-km Golden Gate Bridge, potentially linking historically distinct coyote populations.

  12. Health, traffic, and environmental justice: collaborative research and community action in San Francisco, California.

    PubMed

    Wier, Megan; Sciammas, Charlie; Seto, Edmund; Bhatia, Rajiv; Rivard, Tom

    2009-11-01

    Health impacts on neighborhood residents from transportation systems can be an environmental justice issue. To assess the effects of transportation planning decisions, including the construction of an intraurban freeway, on residents of the Excelsior neighborhood in southeast San Francisco, PODER (People Organizing to Demand Environmental and Economic Rights), a local grassroots environmental justice organization; the San Francisco Department of Public Health; and the University of California, Berkeley, collaborated on participatory research. We used our findings regarding traffic-related exposures and health hazards in the area to facilitate community education and action to address transportation-related health burdens on neighborhood residents.

  13. Carbon Sequestration in San Francisco Bay Tidal Wetlands

    NASA Astrophysics Data System (ADS)

    Callaway, J.; Borgnis, E.; Turner, R. E.; Milan, C.

    2012-12-01

    Many tidal wetlands accumulate soil carbon at relatively rapid rates, in large part because they build soil to counteract increases in sea-level rise. There is growing policy interest in carbon sequestration within tidal wetlands as California and other states consider incorporating tidal wetland restoration activities into carbon trading programs or other emission-reduction policies. Our research was designed to establish a baseline for carbon credits for tidal wetland restoration in the San Francisco Bay Estuary. We measured sediment accretion and carbon sequestration rates at six natural tidal wetlands representing the salinity and geographical range of the Estuary. These sites serve as potential analogs for long-term carbon sequestration in restored wetlands. We collected six cores at each natural wetland (two transects with three stations each). This approach allowed us to identify spatial variation both within and among wetlands in the Estuary. Cores from natural wetlands were dated using 137Cs and 210Pb. Although accretion rates could not be measured at restored wetlands, cores were also collected from two restored wetlands for comparison of soil organic matter and bulk density. Most sites accreted 0.3-0.5 cm/yr, with slightly higher rates of accretion at low marsh stations. Carbon sequestration rates averaged approximately 80 g/m2/yr over the 100-year time span of 210Pb and were slightly higher for 137Cs-based rates. Variation in long-term carbon sequestration rates across sites and stations was much smaller than the variation in mineral inputs, and there was little difference in sequestration rates among sites, or across stations within sites, indicating that a single carbon sequestration rate could be used for crediting tidal wetland restoration projects within the Estuary. Surface soil organic matter and bulk density values were similar across natural and restored wetlands, supporting the use of carbon sequestration data from natural wetlands as a

  14. City College of San Francisco Academy and Pathway Dual Enrollment Program. Case Study

    ERIC Educational Resources Information Center

    Community College Research Center, Columbia University, 2012

    2012-01-01

    This paper provides a case study of a dual enrollment program at the City College of San Francisco. The case study describes different aspects of the program, including implementation, student recruitment, enrollment, course offerings, student support services, high school/college collaboration, challenges, and sustainability. (Contains 1…

  15. Preparing for Prison: Life in San Francisco's Inner-City Neighborhoods. Draft.

    ERIC Educational Resources Information Center

    Feldman, Harvey W.; And Others

    A study of inner-city youth in San Francisco (California) shows that behavior and street ideology once associated exclusively with gangs have now become the world view of a large segment of inner-city young people, especially males. Inner-city young people who aspire to material success do not see a realistic connection between public education…

  16. Youth Chance. A Program of the San Francisco Mayor's Office of Employment and Training.

    ERIC Educational Resources Information Center

    Lesser & Ogden Associates, San Francisco, CA.

    The San Francisco-based YMCA Youth Chance began in 1978 as a Youth Community Conservation and Improvement "sweat program"--a means of providing unemployed high school dropouts with CETA (Comprehensive Employment and Training Act)-funded jobs. Youth Chance continues to train males and females, 16-19 years of age, who meet CETA…

  17. Constraints on the sedimentation history of San Francisco Bay from 14C and 10Be

    USGS Publications Warehouse

    VanGeen, A.; Valette-Silver, N. J.; Luoma, S.N.; Fuller, C.C.; Baskaran, M.; Tera, F.; Klein, J.

    1999-01-01

    Industrialization and urbanization around San Francisco Bay as well as mining and agriculture in the watersheds of the Sacramento and San Joaquin rivers have profoundly modified sedimentation patterns throughout the estuary. We provide some constraints on the onset of these erosional disturbances with 10Be data for three sediment cores: two from Richardson Bay, a small embayment near the mouth of San Francisco Bay, and one from San Pablo Bay, mid-way between the river delta and the mouth. Comparison of pre-disturbance sediment accumulation determined from three 14C-dated mollusk shells in one Richardson Bay core with more recent conditions determined from the distribution of 210Pb and 234Th [Fuller, C.C., van Geen, A., Baskaran, M, Anima, R.J., 1999. Sediment chronology in San Francisco Bay, California, defined by 210Pb, 234Th, 239,240Pu.] shows that the accumulation rate increased by an order of magnitude at this particular site. All three cores from San Francisco Bay show subsurface maxima in 10Be concentrations ranging in magnitude from 170 to 520 x 106 atoms/g. The transient nature of the increased 10Be input suggests that deforestation and agricultural develop- ment caused basin-wide erosion of surface soils enriched in 10Be. probably before the turn of the century.

  18. SF Bayweb 2009: Planting the Seeds of an Observing System in the San Francisco Bay

    DTIC Science & Technology

    2010-06-01

    UC Berkeley Berkeley, CA 94720 Toby Garfield SFSU Romberg Tiburon Center Tiburon, CA 94920 John Largier UC Davis / Bodega Marine Laboratory... Bodega Bay, Ca 94923 Abstract - A pilot project was recently completed in the San Francisco Bay from May 1-10, 2009, to test the use of advanced

  19. Medical Ethics Teaching Programs at the University of California, San Francisco, and the University of Washington.

    ERIC Educational Resources Information Center

    Jonsen, Albert R.

    1989-01-01

    The development of medical ethics education at the University of California, San Francisco, is chronicled and its contributions to bioethics literature are noted. Emphasis is placed on the importance of using medical cases in such instruction. The University of Washington's ethics program and its potential for innovation are then described.…

  20. CAREER TRAINING IN HOTEL AND RESTAURANT OPERATION...AT CITY COLLEGE OF SAN FRANCISCO.

    ERIC Educational Resources Information Center

    BATMALE, LOUIS F.; MULLANY, GEORGE G.

    THE HOTEL AND RESTAURANT PROGRAM, ONE OF 35 SEMIPROFESSIONAL TRAINING PROGRAMS AT CITY COLLEGE OF SAN FRANCISCO, COMBINES GENERAL EDUCATION, RELATED BUSINESS INSTRUCTION, HOTEL AND RESTAURANT CLASSES, FOOD PREPARATION AND SERVICE TRAINING, AND WORK EXPERIENCE. THIS DESCRIPTION OF THE PROGRAM INCLUDES (1) PURPOSES AND OBJECTIVES, (2) CURRICULUM,…

  1. San Francisco Bay Area Endangered Species Litigation - Center for Biological Diversity v. EPA

    EPA Pesticide Factsheets

    EPA and the Center for Biological Diversity have agreed to a revised settlement agreement that amends a 2010 court order for effects determinations on 11 endangered or threatened (listed) species in the San Francisco Bay area. Find out about the new order.

  2. Public perceptions of the ban on tobacco sales in San Francisco pharmacies.

    PubMed

    Kroon, Lisa A; Corelli, Robin L; Roth, Andrew P; Hudmon, Karen Suchanek

    2013-11-01

    In October, 2008, legislation was implemented in the city and county of San Francisco, California, prohibiting the sale of tobacco products in pharmacies. To characterise public awareness and perceptions of the ban on tobacco sales in San Francisco community pharmacies. A brief, anonymous survey was used to assess public awareness and perceptions of a ban on tobacco sales approximately 1 year after implementation. Individuals were approached by researchers outside of chain pharmacies in San Francisco. Smokers and non-smokers were included, and participants did not have to be patrons of the pharmacy. Of 198 participants, 56% were in favor of the ban, 27% opposed it and 17% were undecided. A greater proportion of current tobacco users (81%) than former/never users (48%) were aware of the ban (p<0.001), and a lesser proportion were supportive of the ban (21% of current users vs 66% of former/never users; p<0.001). Most current tobacco users (88% of n=43) had not considered quitting smoking as a result of the ban. The majority of consumers indicated that the ban on cigarette sales did not influence their shopping behaviour at retail pharmacies. In the city and county of San Francisco, public support exists for prohibiting the sale of tobacco products in pharmacies.

  3. 77 FR 45594 - San Francisco Public Utilities Commission; Notice of Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-01

    ... Utilities Commission (San Francisco PUC). e. Name of Project: University Mound Reservoir Renewable Hydroelectric Project. f. Location: The proposed University Mound Reservoir Renewable Hydroelectric Project... to the small size of the proposed project, as wells as the resource agency consultation letters filed...

  4. Who Guards the Guardians? National Implications of Accreditation at City College of San Francisco

    ERIC Educational Resources Information Center

    Barber, Bob; McNair, Delores E.

    2017-01-01

    Purpose: This article addresses the broad context of community college accreditation which surrounds a controversy involving one of the largest community colleges in the United States, City College of San Francisco (CCSF), and its regional accrediting agency, the Accrediting Commission for Community and Junior Colleges (ACCJC). Its purposes are to…

  5. Critiquing the Need to Eliminate Remediation: Lessons from San Francisco State

    ERIC Educational Resources Information Center

    Goen-Salter, Sugie

    2008-01-01

    For more than two decades the California State University (CSU) has been trying unsuccessfully to "reduce the need for remediation" on its campuses, primarily through initiatives aimed at high schools. This article examines a basic writing reform project, San Francisco State's Integrated Reading/Writing Program, in the context of the…

  6. A nowcast model for tides and tidal currents in San Francisco Bay, California

    USGS Publications Warehouse

    Cheng, Ralph T.; Smith, Richard E.

    1998-01-01

    National Oceanographic and Atmospheric Administration (NOAA) installed Physical Oceanographic Real-Time System (PORTS) in San Francisco Bay, California to provide observations of tides, tidal currents, and meteorological conditions. PORTS data are used for optimizing vessel operations, increasing margin of safety for navigation, and guiding hazardous material spill prevention and response. Because tides and tidal currents in San Francisco Bay are extremely complex, limited real-time observations are insufficient to provide spatial resolution for variations of tides and tidal currents. To fill the information gaps, a highresolution, robust, semi-implicit, finite-difference nowcast numerical model has been implemented for San Francisco Bay. The model grid and water depths are defined on coordinates based on Mercator projection so the model outputs can be directly superimposed on navigation charts. A data assimilation algorithm has been established to derive the boundary conditions for model simulations. The nowcast model is executed every hour continuously for tides and tidal currents starting from 24 hours before the present time (now) covering a total of 48 hours simulation. Forty-eight hours of nowcast model results are available to the public at all times through the World Wide Web (WWW). Users can view and download the nowcast model results for tides and tidal current distributions in San Francisco Bay for their specific applications and for further analysis.

  7. The State of Latino Education in the San Francisco Bay Area: A Crisis in Student Performance.

    ERIC Educational Resources Information Center

    Chacon, Mario

    A study examined educational attainment among Latino students in the six-county San Francisco Bay Area. California's Standardized Testing and Reporting (STAR) Program results for 1998-99 were used to assess student achievement in reading and mathematics for grades 4, 7, and 10. Data were also collected on enrollment, dropout rates, percentage of…

  8. 33 CFR 167.406 - Off San Francisco: Area to be avoided.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... avoided. 167.406 Section 167.406 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Separation Schemes and Precautionary Areas Pacific West Coast § 167.406 Off San Francisco: Area to be avoided. A circular area to be avoided, with a radius of half of a nautical mile, is centered upon geographic...

  9. Improving Racial Balance in the San Francisco Public Schools. Summary Report.

    ERIC Educational Resources Information Center

    Platt, William J.; Harker, Robert A.

    A summary of eight research memorandums and two working papers presents the findings of a study of racial balance in San Francisco's schools. Various alternative pupil attendance patterns were designed and assessed for their educational implications, feasibility, cost, and effect on racial balance. The city has high residential concentrations of…

  10. Travel and Tourism Industry: Program Options for City College of San Francisco.

    ERIC Educational Resources Information Center

    City Coll. of San Francisco, CA.

    In an effort to determine the current occupational outlook and resulting implications for education and training, the City College of San Francisco (CCSF), in California, undertook a study of current trends in the travel and tourism industry. This report provides findings from the project, which involved consultation with local and national…

  11. Humanities Teaching and Research at the University of California, San Francisco.

    ERIC Educational Resources Information Center

    Jameton, Andrew; Todes, Dan

    1982-01-01

    Among the humanities offerings integrated into the health sciences at the University of California, San Francisco, are the following: bioethics workshop, ethical dilemmas in medical practice, health and human rights, and history of the health sciences. Such courses help illuminate the relationship between humanities teaching and the health…

  12. Kokes Awards for the 21st NAM Meeting (San Francisco, CA, 2009)

    SciTech Connect

    Katz, Alex

    2009-08-31

    The PI in this project Alexander Katz, UC Berkeley (askatz@berkeley.edu), in conjunction with the Kokes Awards subcommittee and conference organizing committee, used DOE grant DE-FG-02-08ER15993 to partially offset costs of attending the 21st North American Catalysis Society in San Francisco, California, for 30 graduate students from the United States.

  13. 78 FR 54171 - Safety Zone; SFOBB Demolition Safety Zone, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-03

    ... San Francisco-Oakland Bay Bridge A. Regulatory History and Information The Coast Guard is issuing this... operation. The maritime public will be advised in advance of this safety zone via Broadcast Notice to... maritime public will be advised in advance of this safety zone via Broadcast Notice to Mariners. 3...

  14. Increased Risk of Adverse Outcomes in Newborns in the Greater San Francisco Bay Area.

    ERIC Educational Resources Information Center

    Braveman, Paula; And Others

    1991-01-01

    To determine whether lack of medical insurance was associated with adverse health outcomes, this study examined hospital data on newborns in California's San Francisco Bay Area. The study also sought to determine which ethnic groups were most at risk. Computerized data on all civilian acute-care hospitalizations in the study area were obtained for…

  15. Oakland and San Francisco Create Course Pathways through Common Core Mathematics. White Paper

    ERIC Educational Resources Information Center

    Daro, Phil

    2014-01-01

    The Common Core State Standards for Mathematics (CCSS-M) set rigorous standards for each of grades 6, 7 and 8. Strategic Education Research Partnership (SERP) has been working with two school districts, Oakland Unified School District and San Francisco Unified School District, to evaluate extant policies and practices and formulate new policies…

  16. Humberto R. Maturana and Francisco J. Varela on Science and the Humanities: The Poerksen Interviews

    ERIC Educational Resources Information Center

    Journal of Aesthetic Education, 2006

    2006-01-01

    This article deals with Bernhard Poerksen's interviews with Humberto R. Maturana and Francisco J. Varela on science and the humanities. In Poerksen's conversation with Maturana, they talk about the: (1) responsibility of the teacher; (2) listening to the listening; (3) perception and illusion; and (4) all human beings are equally intelligent. In…

  17. EPA Administrator and San Francisco Bay Area government agencies celebrate nations largest solar energy partnership

    EPA Pesticide Factsheets

    SAN FRANCISCO - Today, U.S. EPA Administrator Gina McCarthy joined Bay Area agencies to celebrate the Regional Renewable Energy Procurement Project (R-REP), the nation's largest solar energy government collaboration and the launch of the Federal Agg

  18. Scientific Basis for Assessment of Nutrient Impacts on San Francisco Bay

    EPA Science Inventory

    San Francisco Bay (SFB) is a large, nutrient-enriched estuary that appears resistant to symptoms of nutrient over-enrichment, such as high phytoplankton biomass and hypoxia. This resistance traces to high turbidity, strong tidal mixing, and grazing that limit production and accum...

  19. A Report on Girls in San Francisco: Benchmarks for the Future.

    ERIC Educational Resources Information Center

    Lehman, Ann; Sacco, Carol

    This study collected information on girls in San Francisco, California in the areas of demographics, economics, education, health, safety and violence, and criminal justice. Data came from local, state, and national sources (e.g., the U.S. Census Bureau; the California Bureau of Justice and the Criminal Statistics Center; the California Department…

  20. Taking the Radical Risk: Diary of a San Francisco State Professor.

    ERIC Educational Resources Information Center

    Halperin, Irving

    Perspectives on the literature teacher's role and appropriate subject matter, educational objectives, and instructional methods are considered in light of campus unrest that occurred in the late 1960s at San Francisco State University. The value of studying works of literature in a time of violence and psychic numbing is addressed, and possible…

  1. Innovations in Inclusive Education: Two Teacher Preparation Programs at the San Francisco State University

    ERIC Educational Resources Information Center

    Wolfberg, Pamela; LePage, Pamela; Cook, Ellen

    2009-01-01

    This article introduces two innovative teacher preparation programs that emphasize inclusive education at San Francisco State University. The Combined Elementary and Special Education program has as its main goal to provide specialized cross training for special and general educators who work in highly diverse inclusive public school settings. The…

  2. The Fight To Save the Edison Charter in San Francisco. Briefing.

    ERIC Educational Resources Information Center

    Dphrepaulezz, Diallo

    In 1998, the San Francisco Board of Education granted a charter to Edison Schools, Inc., to manage the Edison Charter Academy. In 2001, it commenced a formal investigation of complaints that Edison had materially violated its charter and notified the school of its intent to revoke the charter. This briefing traces the events from the commencement…

  3. BIOMARKER RESPONSES IN MACOMA NASUTA (BIVALVIA) EXPOSED TO SEDIMENTS FROM NORTHERN SAN FRANCISCO BAY. (R826940)

    EPA Science Inventory

    Abstract

    Our study investigates biomarker responses and survival of Macoma nasuta exposed to sediments collected from six locations in northern San Francisco Bay. Biomarkers analyzed were stress proteins (hsp70) in gill, mantle and digestive gland, lysosomal mem...

  4. Viewing the Afro-Mexican Female Revolutionary: Francisco Rojas Gonzalez's "La negra Angustias"

    ERIC Educational Resources Information Center

    Kanost, Laura

    2010-01-01

    Francisco Rojas Gonzalez's 1944 novel "La negra Angustias" is recognized as the only novel of the Mexican Revolution that features a black woman military officer. Critics have observed that, although this semi-biographical novel portrays Angustias as a gender nonconformist who seeks justice for women and the poor, the conclusion ushers…

  5. EFFECTS OF DDT SEDIMENT-CONTAMINATION ON MACROFAUNAL COMMUNITY STRUCTURE AND COMPOSITION IN SAN FRANCISCO BAY

    EPA Science Inventory

    The objectives of this study were to determine the effects of sediment contamination on the benthic macrofauna and to predict macrofaunal changes following remediation at a Superfund (uncontrolled hazardous waste) site in San Francisco Bay, CA, USA. DDT and its metabolites (sumDD...

  6. Project EXCEL: San Francisco Hilton and Towers, Stewarding Department. English Communication, Module 1.

    ERIC Educational Resources Information Center

    Career Resources Development Center, Inc., San Francisco, CA.

    Project EXCEL is a federally-funded workplace literacy program involving hotel enterprises in the San Francisco (California) Bay area. Its focus is on identification and instruction of literacy skills essential to job success for limited-English-proficient (LEP) workers. Training is intended to enable employees to understand written work orders,…

  7. Medical Ethics Teaching Programs at the University of California, San Francisco, and the University of Washington.

    ERIC Educational Resources Information Center

    Jonsen, Albert R.

    1989-01-01

    The development of medical ethics education at the University of California, San Francisco, is chronicled and its contributions to bioethics literature are noted. Emphasis is placed on the importance of using medical cases in such instruction. The University of Washington's ethics program and its potential for innovation are then described.…

  8. The Science-Humanities Program (NEXA) at San Francisco State University: The 'Two Cultures' Reconsidered.

    ERIC Educational Resources Information Center

    Gregory, Michael S.

    1980-01-01

    The origin of the NEXA Program at San Francisco State University is described. A historical summary is offered of the 'two-cultures' dilemma, whose origins are traced to the seventeenth century and whose consequences for the nineteenth and twentieth century experience are examined. (Author/MLW)

  9. Hypoallergenic breads. Wheat content of products available in the San Francisco Bay area.

    PubMed

    Lietze, A; Rowe, A H; Rowe, A

    1967-12-01

    Substantial amounts of soluble wheat antigens have been found in breads sold as "wheat-free" in the San Francisco Bay Area. Physicians with patients on a wheat-free diet are urged to exercise careful supervision over their patients' choice of such breads.

  10. Humberto R. Maturana and Francisco J. Varela on Science and the Humanities: The Poerksen Interviews

    ERIC Educational Resources Information Center

    Journal of Aesthetic Education, 2006

    2006-01-01

    This article deals with Bernhard Poerksen's interviews with Humberto R. Maturana and Francisco J. Varela on science and the humanities. In Poerksen's conversation with Maturana, they talk about the: (1) responsibility of the teacher; (2) listening to the listening; (3) perception and illusion; and (4) all human beings are equally intelligent. In…

  11. San Francisco Infant Program. Final Progress Report, July 1, 1981-June 30, 1982.

    ERIC Educational Resources Information Center

    San Francisco State Univ., CA. Dept. of Special Education.

    The San Francisco Infant Program provides classroom and home educational programs for handicapped (or at-risk) infants (0-18) months and toddlers (18-36 months), parent training, preservice and inservice training, and research opportunities. The transdisciplinary training focuses on the following skills: gross and fine motor, cognitive,…

  12. Heat wave brings an unprecedented red tide to San Francisco Bay

    USGS Publications Warehouse

    Cloern, James E.; Schraga, Tara S.; Lopez, Cary B.

    2005-01-01

    However, the authors have never observed a dinoflagellate bloom of this scale during 28 years of sampling in the nutrient-rich San Francisco Bay. Phytoplankton biomass along this transect is typically <5mg Chla/m3, and has never exceeded 21 mg Chla/m3 during summer-autumn.

  13. Reach: A Multicultural Education Resource Handbook for the San Francisco Bay Area.

    ERIC Educational Resources Information Center

    Sykes, Vivian; Tricamo, Terese

    The guide will help elementary and secondary school teachers to identify resources for multicultural education in the San Francisco Bay Area. Over 250 entries are included about American Indians, Mexican Americans, Chinese and Japanese Americans, Greek Americans, Jews, and Afro Americans, the groups most thoroughly represented. Almost every entry…

  14. 75 FR 67618 - Safety Zone: Richardson Ash Scattering by Fireworks, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-03

    ... Sausalito Ferry docks in Sausalito, CA. From 6:15 p.m. until 7 p.m., the area to which the temporary safety... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone: Richardson Ash Scattering by Fireworks, San... establishing a temporary safety zone in the navigable waters of San Francisco Bay 1,500 feet off Yellow Bluff...

  15. 77 FR 50919 - Safety Zone: Wedding Reception Fireworks at Pier 24, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-23

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone: Wedding Reception Fireworks at Pier 24, San... Francisco, CA in support of the Wedding Reception Fireworks at Pier 24 on August 24, 2012. This safety zone... sponsor the Wedding Reception Fireworks at Pier 24 on August 24, 2012, in the navigable waters of the San...

  16. CONSTANCY OF THE RELATION BETWEEN FLOC SIZE AND DENSITY IN SAN FRANCISCO BAY

    EPA Science Inventory

    Ganju, N.K., D.H. Schoellhamer, M.C. Murrell, J.W. Gartner and S.A. Wright. In press. Constancy of the Relation Between Floc Size and Density in San Francisco Bay. In: INTERCOH 2003: Proceedings of the 7th International Conference on Nearshore and Estuarine Cohesive Sediment Tran...

  17. Planning Atlas: Fact Book for City College of San Francisco, Fall 1999.

    ERIC Educational Resources Information Center

    Mery, Pamela M.

    A new edition of the City College of San Francisco (CCSF) Planning Atlas, which reports on the status and progress the college has made on achieving the goals set forth in the Strategic Plan, was published in 1998. The Strategic Plan calls for regular reports on approximately 50 performance indicators, some of which have been published for several…

  18. The San Francisco Peace Treaty: The Cold War and the Peace Process.

    ERIC Educational Resources Information Center

    Brunette, Rachel

    International treaties have played a central role in diplomatic history since the rise of the modern nation state. Since the end of World War II, more treaties have been formed than in the preceding four centuries. The year 2001 marks the 50th anniversary of the San Francisco Peace Treaty. This unit provides students with historical knowledge of…

  19. 76 FR 35805 - Port Access Route Study: The Approaches to San Francisco

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-20

    ...-0576] Port Access Route Study: The Approaches to San Francisco AGENCY: Coast Guard, DHS. ACTION: Notice of availability of study results. SUMMARY: The Coast Guard announces the availability of a Port Access Route Study (PARS) evaluating the continued applicability of and the potential need...

  20. The Poet Behind the Series: An Interview with Francisco X. Alarcon.

    ERIC Educational Resources Information Center

    Basurto, Imelda

    2002-01-01

    Presents an interview with Francisco X. Alarcon, a writer of bilingual works for adults as well as children. Discusses his latest work, "Magical Cycle of the Seasons," perhaps the most representative of his cultural and linguistic heritage, a series of children's poetry books rendered in both English and Spanish. (SG)

  1. Taking the Radical Risk: Diary of a San Francisco State Professor.

    ERIC Educational Resources Information Center

    Halperin, Irving

    Perspectives on the literature teacher's role and appropriate subject matter, educational objectives, and instructional methods are considered in light of campus unrest that occurred in the late 1960s at San Francisco State University. The value of studying works of literature in a time of violence and psychic numbing is addressed, and possible…

  2. Working Together To Build Beacon Centers in San Francisco: Evaluation Findings from 1998-2000.

    ERIC Educational Resources Information Center

    Walker, Karen E.; Arbreton, Amy J. A.

    The Beacons Initiative aimed to transform eight public schools (five middle schools and three high schools) into youth and family centers in low-income neighborhoods in San Francisco, California. Using a coalition of local partners and funding from public agencies and foundations, the centers served 7,500 youth and adults between July 1, 1999, and…

  3. The Varieties of Religious Experience: Baptized Indians at Mission San Francisco de Asis, 1776-1821

    ERIC Educational Resources Information Center

    Newell, Quincy D.

    2008-01-01

    Paseos, which are defined as trips away from the mission authorized by the Franciscan priests, were common among Indians baptized at Mission San Francisco during the period between 1700s to 1800s. Indians went on these journeys in order to harvest acorns and other wild foods, to hunt and fish, and to visit friends and family outside the mission.…

  4. Seasonal patterns of alkalinity in the San Francisco Bay estuarine system, California, during 1980

    USGS Publications Warehouse

    Schemel, L.E.

    1984-01-01

    Salinity and alkalinity were measured in the near-surface waters of San Francisco Bay estuarine system at two-week intervals during 1980. Results are presented in figures and as numerical values, and the analytical methods are detailed. The transport of alkalinity to the Bay from the delta during 1980 was 3.8 x 10 to Ohe 10th power equivalents; this estimate is based on the freshwater alkalinity concentrations predicted by the north San Francisco Bay salinity-alkalinity distributions. North San Francisco Bay distributions are primarily the result of conservative mixing of freshwater from the Delta with Pacific Ocean water. Nonlinear distributions are the consequence of alkalinity variations in the freshwater rather than the effects of in-estuary processes or sources. Seasonal inflow of agricultural waste water is a major cause of freshwater alkalinity variations. South San Francisco Bay salinity-alkalinity distributions show the effects of variations in Delta outflow rate, local streams, and municipal waste-water inflows. (USGS)

  5. 33 CFR 167.400 - Off San Francisco Traffic Separation Scheme: General.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Off San Francisco Traffic... OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY OFFSHORE TRAFFIC SEPARATION SCHEMES Description of Traffic Separation Schemes and Precautionary Areas Pacific West Coast § 167.400 Off...

  6. 33 CFR 167.400 - Off San Francisco Traffic Separation Scheme: General.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Off San Francisco Traffic... OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY OFFSHORE TRAFFIC SEPARATION SCHEMES Description of Traffic Separation Schemes and Precautionary Areas Pacific West Coast § 167.400 Off...

  7. 33 CFR 167.400 - Off San Francisco Traffic Separation Scheme: General.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Off San Francisco Traffic... OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY OFFSHORE TRAFFIC SEPARATION SCHEMES Description of Traffic Separation Schemes and Precautionary Areas Pacific West Coast § 167.400 Off...

  8. A Principal's Story. Two-Year Effort To Turn around Edison Elementary School in San Francisco.

    ERIC Educational Resources Information Center

    Romines, Ken

    In this memoir, a principal recounts the story of his 2 years at Edison Elementary School in San Francisco (CA), a school that was called the worst school in California. The students had the worst standardized test scores in the district, and racial discord and playground violence were common. The school was facing the threat of reconstitution,…

  9. Propagation of tidal marsh species native to the San Francisco Bay

    Treesearch

    Erin Heimbinder; Betty Young

    2002-01-01

    Of the original tidal salt marshes around the San Francisco Bay, only about 5% remain. There have been many mitigation projects undertaken in this bay over the last 10 years. Depending on funding, projects have simply regraded the mudflats to provide habitat and some projects have included seeding or planting of native halophytic plants. However, most of these projects...

  10. City College of San Francisco 1997 Sexual Harassment Student Opinion Survey.

    ERIC Educational Resources Information Center

    City Coll. of San Francisco, CA. Office of Institutional Research, Planning and Grants.

    This document describes the findings of a 1997 sexual harassment student opinion survey conducted at City College of San Francisco. Survey questions were jointly developed by the Sexual Harassment Prevention Sub-Committee of the Diversity Advisory Committee and the Office of Research and Planning, approved by the College Advisory Council, and…

  11. Making Whites from the Dark Side: Teaching Whiteness Studies at San Francisco State University

    ERIC Educational Resources Information Center

    Sueyoshi, Amy

    2013-01-01

    While whiteness studies at most institutions aims to expose the persistence of white supremacy to a disbelieving audience, whiteness studies within the College of Ethnic Studies (COES) at San Francisco State University (SFSU) begins with the assumption that racism still exists. The course then traces how whiteness is constructed and fortified to…

  12. Design for the Evaluation of the San Francisco Home Health Services. Emergency Family Care Services Program.

    ERIC Educational Resources Information Center

    Remy, Linda L.

    This is a design for the evaluation of emergency family care programs of the San Francisco, California Home Health Services administration. The design objectives are qiven as the promotion of the health and welfare of the family unit and the reduction of the number of out-of-home placements of children and subsequent crises. The objectives of the…

  13. 33 CFR 334.1010 - San Francisco Bay in vicinity of Hunters Point; naval restricted area.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334... the shore of the San Francisco Naval Shipyard and the following lines: Beginning at a point on the northerly shore of the Shipyard bearing 292°40′, 950 yards, from Hunters Point Light; thence 35°27′,...

  14. 33 CFR 334.1010 - San Francisco Bay in vicinity of Hunters Point; naval restricted area.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334... the shore of the San Francisco Naval Shipyard and the following lines: Beginning at a point on the northerly shore of the Shipyard bearing 292°40′, 950 yards, from Hunters Point Light; thence 35°27′,...

  15. Scientific Basis for Assessment of Nutrient Impacts on San Francisco Bay

    EPA Science Inventory

    San Francisco Bay (SFB) is a large, nutrient-enriched estuary that appears resistant to symptoms of nutrient over-enrichment, such as high phytoplankton biomass and hypoxia. This resistance traces to high turbidity, strong tidal mixing, and grazing that limit production and accum...

  16. The Adjustment of Native American Students to Public Schools in the East San Francisco Bay Area.

    ERIC Educational Resources Information Center

    Molohon, Kathryn Theresa

    Adjustment of American Indians to a major urban institution, exemplified by public schools, and adaptations to urban life in general were examined, using data collected between 1965 and 1969, and focusing on intensive observations of 24 randomly-selected American Indian students (19 high school, 5 elementary) attending East San Francisco Bay Area…

  17. Making Whites from the Dark Side: Teaching Whiteness Studies at San Francisco State University

    ERIC Educational Resources Information Center

    Sueyoshi, Amy

    2013-01-01

    While whiteness studies at most institutions aims to expose the persistence of white supremacy to a disbelieving audience, whiteness studies within the College of Ethnic Studies (COES) at San Francisco State University (SFSU) begins with the assumption that racism still exists. The course then traces how whiteness is constructed and fortified to…

  18. Estuarine Vegetation at Rush Ranch Open Space Preserve, San Francisco Bay National Estuarine Research Reserve, California

    USDA-ARS?s Scientific Manuscript database

    The Rush Ranch Open Space Preserve (Rush Ranch) includes the largest remaining undiked tidal wetland within the Suisun Marsh region of the San Francisco Estuary. The brackish tidal wetlands grade into transitional vegetation and undeveloped grasslands of the Potrero Hills. We present analysis of ...

  19. EFFECTS OF DDT SEDIMENT-CONTAMINATION ON MACROFAUNAL COMMUNITY STRUCTURE AND COMPOSITION IN SAN FRANCISCO BAY

    EPA Science Inventory

    The objectives of this study were to determine the effects of sediment contamination on the benthic macrofauna and to predict macrofaunal changes following remediation at a Superfund (uncontrolled hazardous waste) site in San Francisco Bay, CA, USA. DDT and its metabolites (sumDD...

  20. Community Mobilization Project: A Strategic Plan for American Indians in the San Francisco Bay Area.

    ERIC Educational Resources Information Center

    United Indian Nations, Inc., Oakland, CA.

    The Community Mobilization Project was a 3-year, grassroots strategic planning process by American Indians in the San Francisco Bay Area. As a result of Bureau of Indian Affairs policies that relocated reservation Indians to the Bay Area in the 1950s-70s, over 40,000 American Indians now live in the 10-county area. However, the Indian population…

  1. 33 CFR 165.1192 - Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated Navigation Areas and Limited Access Areas Eleventh Coast Guard District § 165.1192..., San Francisco Bay, California. (a) Locations. The following areas are security zones: (1) San...

  2. 33 CFR 165.1192 - Security Zones; Waters surrounding San Francisco International Airport and Oakland International...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated Navigation Areas and Limited Access Areas Eleventh Coast Guard District § 165.1192..., San Francisco Bay, California. (a) Locations. The following areas are security zones: (1) San...

  3. Realizing a Progressive Pedagogy: A Comparative Case Study of Two Reggio Emilia Preschools in San Francisco

    ERIC Educational Resources Information Center

    Abdelfattah, Marwa

    2015-01-01

    This study aims to uncover how a particular imported philosophy of early childhood education, Reggio Emilia, is implemented in the context of one public and one private preschool in San Francisco. The philosophy of Reggio Emilia is believed to be progressive and to be developmentally appropriate for children in early childhood. The study involved…

  4. BIOMARKER RESPONSES IN MACOMA NASUTA (BIVALVIA) EXPOSED TO SEDIMENTS FROM NORTHERN SAN FRANCISCO BAY. (R826940)

    EPA Science Inventory

    Abstract

    Our study investigates biomarker responses and survival of Macoma nasuta exposed to sediments collected from six locations in northern San Francisco Bay. Biomarkers analyzed were stress proteins (hsp70) in gill, mantle and digestive gland, lysosomal mem...

  5. 77 FR 22706 - Special Local Regulation and Safety Zone; America's Cup Sailing Events, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-17

    ... the ``America's Cup World Series,'' the ``Louis Vuitton Cup'' challenger selection series, and the ``America's Cup Finals Match'' sailing regattas that may be conducted in the waters of San Francisco Bay... SECURITY Coast Guard 33 CFR Parts 100 and 165 Special Local Regulation and Safety Zone; America's...

  6. The Quality Teacher and Education Act in San Francisco: Lessons Learned. Policy Brief 09-2

    ERIC Educational Resources Information Center

    Hough, Heather J.

    2009-01-01

    This policy brief reviews the recent experience of the San Francisco Unified School District (SFUSD) with the development and approval of Proposition A. Proposition A (also known as the Quality Teacher and Education Act, or QTEA) included a parcel tax mainly dedicated to increasing teachers' salaries, along with a variety of measures introducing…

  7. CONSTANCY OF THE RELATION BETWEEN FLOC SIZE AND DENSITY IN SAN FRANCISCO BAY

    EPA Science Inventory

    Ganju, N.K., D.H. Schoellhamer, M.C. Murrell, J.W. Gartner and S.A. Wright. In press. Constancy of the Relation Between Floc Size and Density in San Francisco Bay. In: INTERCOH 2003: Proceedings of the 7th International Conference on Nearshore and Estuarine Cohesive Sediment Tran...

  8. San Francisco's 'pay or play' employer mandate expanded private coverage by local firms and a public care program.

    PubMed

    Colla, Carrie H; Dow, William H; Dube, Arindrajit

    2013-01-01

    In 2008 San Francisco implemented a pay-or-play employer mandate that required firms operating in the city to provide health insurance coverage for employees or contribute to the city's "public option" health access program, Healthy San Francisco. Using data from our Bay Area Employer Health Benefits Survey, we found that in the first two years after implementation, more employers offered insurance and provided employee health benefit coverage relative to employers outside San Francisco not subject to the mandate. Sixty-seven percent reported in 2009 that they had expanded benefits since 2007. Although 22 percent of firms responding to the survey reported contributing to Healthy San Francisco for some employees, we observed no crowd-out of private insurance. Premium changes between 2007 and 2009 were similar in San Francisco and surrounding areas, but more of the burden of premium contributions in San Francisco shifted from workers to employers. Overall, 64 percent of firms responding to the survey supported the employer mandate. San Francisco's experience indicates that such a mandate is feasible, increases access, and is acceptable to many employers, which bodes well for the national employer mandate that will take effect under the Affordable Care Act in 2014.

  9. Geochemical characterization of the San Francisco Volcanic Field source

    NASA Astrophysics Data System (ADS)

    Peterson, B. T.; DePaolo, D. J.

    2012-12-01

    The San Francisco Volcanic Field (SFVF) is an active clustering of basalt flows and evolved silicic complexes in Arizona, USA, within the transition zone of crustal thickening from the Basin and Range Province (BRP) to the Colorado Plateau (CP). Although the field is not associated with typical volcanic geodynamic/tectonic regimes (e.g. subduction zones or mantle plumes), peak magma production was sufficient to produce a central stratovolcano. A subcontinental lithospheric mantle source has been inferred for transition zone volcanics, possibly related to sub-Moho or sub-lithosphere topography through processes like edge-driven convection. The central stratovolcano and coeval surrounding lower-volume, monogenetic basalt eruptions suggest there could be systematic spatial variability in chemistry and magma production rates within the SFVF source; on a much larger scale, variability has been observed in dynamic plume-driven volcanic provinces, such as Iceland and the Hawaiian Islands. In order to constrain the source chemistry and geometry, and investigate magmatic evolution of the SFVF, we have measured major and trace element abundances, and Nd, Sr, and Pb isotope ratios in Brunhes-aged samples that cover the eastern SFVF (including the stratovolcano and surrounding basalts). Stratovolcano mafic samples span a compositionally equivalent or narrower isotopic range than that observed in the surrounding monogenetic basalts; stratovolcano samples have ɛNd from -6 to -0.5, while surrounding samples range from -11 to +3. Sr isotopes in stratovolcano and more distal samples are comparatively unradiogenic, and range from 0.7028 to 0.7042. Pb isotopes in all samples are enriched beyond depleted mantle and above the NHRL. Some non-proximal samples have nearly identical isotopic values; for instance, several samples (in some cases samples from the stratovolcano and nearby cones) may cluster together in Sr-Nd space. When we filter data to exclude samples with <5 wt% MgO, the

  10. Time scales of change in the San Francisco Bay benthos

    USGS Publications Warehouse

    Nichols, F.H.; Thompson, J.K.

    1985-01-01

    Results from multi-year investigations in the San Francisco Bay estuary show that large abundance fluctuations within benthic macroinvertebrate populations reflect both (1) within-year periodicity of reproduction, recruitment, and mortality that is not necessarily coincident with seasonal changes of the environment (e.g., the annual temperature cycle), and (2) aperiodic density changes (often larger than within-year fluctuations) following random perturbations of the environment. Density peaks of the small, short-lived estuarine invertebrates that comprise the vast majority of individuals in the bay's relatively homogeneous benthic community normally occur between spring and autumn depending on the species, in large part a reflection of reproductive periodicity. However, because mild winters permit reproductive activity in some of the common species throughout much of the year, other factors are important to within-year density fluctuations in the community. Seasonally predictable changes in freshwater inflow, wind and tidal mixing, microalgal biomass, and sediment erosion/deposition patterns all contribute to observed seasonal changes in abundance. For example, the commonly observed decline in abundance during winter reflects both short-lived species that die after reproducing and the stress of winter conditions (e.g., inundation by less saline, sediment-laden water and the decline in both planktonic and benthic algal biomass - a direct source of food for the shallow-water benthos). On the other hand, data from several studies suggest that observed 'recruitment' and 'mortality' may in fact be the migration of juveniles and adults to and from study sites. For example, the common amphipod Ampelisca abdita apparently moves from shallow to deep water, or from up-estuary to down-estuary locations, coincident with periods of high river runoff in winter. Growth of individuals within the few studied species populations is also highly seasonal, and appears to be coincident

  11. The long-term salinity field in San Francisco Bay

    USGS Publications Warehouse

    Uncles, R.J.; Peterson, D.H.

    1996-01-01

    Data are presented on long-term salinity behaviour in San Francisco Bay, California. A two-level, width averaged model of the tidally averaged salinity and circulation has been written in order to interpret the long-term (days to decades) salinity variability. The model has been used to simulate daily averaged salinity in the upper and lower levels of a 51 segment discretization of the Bay over the 22-yr period 1967-1988. Monthly averaged surface salinity from observations and monthly-averaged simulated salinity are in reasonable agreement. Good agreement is obtained from comparison with daily averaged salinity measured in the upper reaches of North Bay. The salinity variability is driven primarily by freshwater inflow with relatively minor oceanic influence. All stations exhibit a marked seasonal cycle in accordance with the Mediterranean climate, as well as a rich spectrum of variability due to extreme inflow events and extended periods of drought. Monthly averaged salinity intrusion positions have a pronounced seasonal variability and show an approximately linear response to the logarithm of monthly averaged Delta inflow. Although few observed data are available for studies of long-term salinity stratification, modelled stratification is found to be strongly dependent on freshwater inflow; the nature of that dependence varies throughout the Bay. Near the Golden Gate, stratification tends to increase up to very high inflows. In the central reaches of North Bay, modelled stratification maximizes as a function of inflow and further inflow reduces stratification. Near the head of North Bay, lowest summer inflows are associated with the greatest modelled stratification. Observations from the central reaches of North Bay show marked spring-neap variations in stratification and gravitational circulation, both being stronger at neap tides. This spring-neap variation is simulated by the model. A feature of the modelled stratification is a hysteresis in which, for a given

  12. Probabilistic estimation of numbers and costs of future landslides in the San Francisco Bay region

    USGS Publications Warehouse

    Crovelli, R.A.; Coe, J.A.

    2009-01-01

    We used historical records of damaging landslides triggered by rainstorms and a newly developed Probabilistic Landslide Assessment Cost Estimation System (PLACES) to estimate the numbers and direct costs of future landslides in the 10-county San Francisco Bay region. Historical records of damaging landslides in the region are incomplete. Therefore, our estimates of numbers and costs of future landslides are minimal estimates. The estimated mean annual number of future damaging landslides for the entire 10-county region is about 65. Santa Cruz County has the highest estimated mean annual number of damaging future landslides (about 18), whereas Napa, San Francisco, and Solano Counties have the lowest estimated mean numbers of damaging landslides (about 1 each). The estimated mean annual cost of future landslides in the entire region is about US $14.80 million (year 2000 $). The estimated mean annual cost is highest for San Mateo County ($3.24 million) and lowest for Solano County ($0.18 million). The annual per capita cost for the entire region will be about $2.10. Santa Cruz County will have the highest annual per capita cost at $8.45, whereas San Francisco County will have the lowest per capita cost at $0.31. Normalising costs by dividing by the percentage of land area with slopes equal to or greater than 17% indicates that San Francisco County will have the highest cost per square km ($7,101), whereas Santa Clara County will have the lowest cost per square km ($229). These results indicate that the San Francisco Bay region has one of the highest levels of landslide risk in the United States. Compared with landslide cost estimates from the rest of the world, the risk level in the Bay region seems high, but not exceptionally high.

  13. Sediment Deposition, Erosion, and Bathymetric Change in Central San Francisco Bay: 1855-1979

    USGS Publications Warehouse

    Fregoso, Theresa A.; Foxgrover, Amy C.; Jaffe, Bruce E.

    2008-01-01

    Central San Francisco Bay is the hub of a dynamic estuarine system connecting the San Joaquin and Sacramento River Deltas, Suisun Bay, and San Pablo Bay to the Pacific Ocean and South San Francisco Bay. To understand the role that Central San Francisco Bay plays in sediment transport throughout the system, it is necessary to first determine historical changes in patterns of sediment deposition and erosion from both natural and anthropogenic forces. The first extensive hydrographic survey of Central San Francisco Bay was conducted in 1853 by the National Ocean Service (NOS) (formerly the United States Coast and Geodetic Survey (USCGS)). From 1894 to 1979, four additional surveys, composed of a total of approximately 700,000 bathymetric soundings, were collected within Central San Francisco Bay. Converting these soundings into accurate bathymetric models involved many steps. The soundings were either hand digitized directly from the original USCGS and NOS hydrographic sheets (H-sheets) or obtained digitally from the National Geophysical Data Center's (NGDC) Geophysical Data System (GEODAS) (National Geophysical Data Center, 1996). Soundings were supplemented with contours that were either taken directly from the H-sheets or added in by hand. Shorelines and marsh areas were obtained from topographic sheets. The digitized soundings, depth contours, shorelines, and marsh areas were entered into a geographic information system (GIS) and georeferenced to a common horizontal datum. Using surface modeling software, bathymetric grids with a horizontal resolution of 25 m were developed for each of the five hydrographic surveys. Before analyses of sediment deposition and erosion were conducted, interpolation bias was removed and all of the grids were converted to a common vertical datum. These bathymetric grids were then used to develop bathymetric change maps for subsequent survey periods and to determine long-term changes in deposition and erosion by calculating volumes and

  14. Water quality variability in San Francisco Bay, Some gGeneral lessons from 1996 sampling: 1996 annual report, San Francisco estuary regional monitoring program for trace substances

    USGS Publications Warehouse

    Cloern, J.E.; Cole, B.E.; Edmunds, J.L.; Baylosis, J.I.

    1997-01-01

    This report describes the results from the 1996 Regional Monitoring Program for Trace Substances (RMP). It is the fourth Annual Report from the RMP which began in 1993 and attempts to synthesize the most obvious data patterns from the last four years. This report includes data from Base Program monitoring activities, as well as results of Pilot and Special Studies conducted or completed in 1996. Additionally, several articles contributed by RMP investigators and others, are included. These articles provide perspective and insight on important contaminant issues identified by the RMP. This summary addresses which kinds of pollutants measured by the RMP appear to be at levels that warrant concern, what kinds of trends may be discerned, and which stations have consistently shown elevated contaminant levels. The goals or general objectives of the RMP are: 1. To obtain high quality baseline data describing the concentrations of toxic and potentially toxic trace elements and organic contaminants in the water and sediment of the San Francisco Estuary. 2. To determine seasonal and annual trends in chemical and biological water quality in the San Francisco Estuary. 3. To continue to develop a data set that can be used to determine long-term trends in the concentrations of toxic and potentially toxic trace elements and organic contaminants in the water and sediments of the San Francisco Estuary. 4. To determine whether water quality and sediment quality in the Estuary at large are in compliance with objectives established by the Basin Plan (the regulatory planning document used by the Regional Water Quality Control Board). 5. To provide a database on water and sediment quality in the Estuary which is compatible with data being developed in other ongoing studies, including wasteload allocation studies and model development, sediment quality objectives development, in-bay studies of dredged material disposal, Interagency Ecological Program (IEP) water quality studies, primary

  15. University of California San Francisco (UCSF-2): Integrative Genomic Approaches in Neuroblastoma (NBL) | Office of Cancer Genomics

    Cancer.gov

    The CTD2 Center at University of California San Francisco (UCSF-2) used an integrative genomics approach to reveal unidentified mRNA splicing patterns in neuroblastoma. Read the abstract Experimental Approaches Read the detailed Experimental Approaches

  16. DISTRIBUTION AND COMPOSITION OF DISSOLVED AND PARTICULATE ORGANIC CARBON IN NORTHERN SAN FRANCISCO BAY DURING LOW FRESHWATER FLOW CONDITIONS

    EPA Science Inventory

    The distribution of organic matter was studied in northern San Francisco Bay monthly through spring and summer 1996 along the salinity gradient from the Sacramento River to Central Bay. Dissolved constituents included monosaccharides (MONO), total carbohydrates (TCHO), dissolved ...

  17. U.S. EPA honors San Francisco Bay Area firm Hybrid Coating Technologies with Green Chemistry Award

    EPA Pesticide Factsheets

    SAN FRANCISCO - Today the U.S. Environmental Protection Agency recognized Hybrid Coating Technologies of Daly City, Calif. with a Presidential Green Chemistry Award for developing a safer, plant-based polyurethane for use on floors, furniture and in

  18. DISTRIBUTION AND COMPOSITION OF DISSOLVED AND PARTICULATE ORGANIC CARBON IN NORTHERN SAN FRANCISCO BAY DURING LOW FRESHWATER FLOW CONDITIONS

    EPA Science Inventory

    The distribution of organic matter was studied in northern San Francisco Bay monthly through spring and summer 1996 along the salinity gradient from the Sacramento River to Central Bay. Dissolved constituents included monosaccharides (MONO), total carbohydrates (TCHO), dissolved ...

  19. 33 CFR 100.1105 - San Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels Demonstration.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) Effective Periods. This section is effective during the U.S. Navy/City of San Francisco Fleetweek Parade of... Guard Patrol Commander is empowered to forbid and control the movement of all vessels in the regulated...

  20. 33 CFR 100.1105 - San Francisco Bay Navy Fleetweek Parade of Ships and Blue Angels Demonstration.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) Effective Periods. This section is effective during the U.S. Navy/City of San Francisco Fleetweek Parade of... Guard Patrol Commander is empowered to forbid and control the movement of all vessels in the regulated...

  1. Long-term trends in metals, PCBs, and pesticides in mussels from San Francisco Bay

    SciTech Connect

    Stephenson, M.D.; Tjeerdema, R.S.; Taberski, K.; Thompson, B.; Hoenicke, R.

    1995-12-31

    Many contaminant programs have been established to study the geographical distributions and long-term trends of potential pollutants, but unfortunately, many have been short-lived because of economic cutbacks, providing limited information on long-term trends. The California State Mussel Watch program in conjunction with the San Francisco Estuary Institute (in the last 2 years) have provided continues funding for the past 15 years to mussel watch studies in San Francisco Bay. Long-term trends have been identified that describe declines in many organics and metals during the last 15 years. There are also some metals and organics that show no specific trends. The declines indicate that the banning or restriction of usage of some of these contaminants has resulted in substantial decreases of these substances in the environment.

  2. LOWER SAN FRANCISCO WILDERNESS STUDY AREA AND CONTIGUOUS ROADLESS AREAS, ARIZONA AND NEW MEXICO.

    USGS Publications Warehouse

    Ratte, James C.; Lane, Michael

    1984-01-01

    The Lower San Francisco study area consists of about 40 sq mi, in a strip between 1 and 6 mi wide, along a 20-30 mi stretch of the San Francisco River in Arizona and New Mexico. The study area and contiguous roadless areas were examined for mineral potential and found to have an area of probable mineral-resource potential for base- or precious-metal deposits in middle to upper Tertiary volcanic rocks. The entire area has a largely unassessable potential for base-metal deposits related to igneous intrusives of Laramide age, like those in the nearby Morenci mining district, Arizona. The contiguous roadless area has an area of probable mineral-resource potential for molybdenum or copper deposits related to intrusive igneous rocks in the core of a dacitic volcano of Oligocene age. An area in the west part of the study area has a probable geothermal-resource potential.

  3. The impact of human activities on sediments of San Francisco Bay, California: an overview

    USGS Publications Warehouse

    van Geen, Alexander; Luoma, Samuel N.

    1999-01-01

    This note introduces a set of eight papers devoted to a detailed study of two sediment cores from San Francisco Bay with an overview of the region and a chronology of human activities. Data used in this study to constrain the range of sediment ages at different depths include , and  concentrations in the sediment and the  age of shell fragments. In order of first detectable appearance in the record, the indicators of contamination that were analyzed include PAHs>Hg>Ag, Cu, Pb, Zn>DDT, PCB>foraminiferal Cd/Ca. This study also documents a large memory effect for estuarine contamination caused by sediment mixing and resuspension. Once an estuary such as San Francisco Bay has been contaminated, decades must pass before contaminant levels in surface sediment will return to background levels, even if external contaminant inputs have been entirely eliminated.

  4. Effects of the 1989 San Francisco earthquake on frequency and content of nightmares.

    PubMed

    Wood, J M; Bootzin, R R; Rosenhan, D; Nolen-Hoeksema, S; Jourden, F

    1992-05-01

    In a systematic evaluation of the effects of a natural disaster on nightmares, nightmare frequency was found to be about twice as high among 92 San Francisco Bay area college students as among 97 control subjects in Tucson, Arizona, after the 1989 Loma Prieta earthquake. Subjects in California had not only more nightmares in general but substantially more nightmares about earthquakes. Over a 3-week period, about 40% of those in the San Francisco Bay area reported one or more nightmares about an earthquake, as compared with only 5% of those in Arizona. However, nightmares about earthquakes were not more emotionally intense than other nightmares. These findings support the long-held view that the experience of a potentially traumatic event can result in more frequent nightmares, particularly about the event itself, but contradict the common opinion that nightmares about such events are unusually intense.

  5. Observations of Fallout from the Fukushima Reactor Accident in San Francisco Bay Area Rainwater

    NASA Astrophysics Data System (ADS)

    Norman, Eric; Angell, Christopher; Chodash, Perry

    2011-10-01

    We observed fallout from the Fukushima Dai-ichi reactor accident in samples of rainwater collected in the San Francisco Bay area beginning approximately 1 week after the earthquake. Gamma ray spectra measured from these samples show clear evidence of fission products - 131,132I, 132Te, and 134,137Cs. The activity levels we have measured for these isotopes are very low and pose no health risk to the public. Soon after the observation of fallout in rainwater, we also observed low levels of Fukushima fallout in plant and food specimens collected in the the San Francisco area. This work was supported in part by the US Dept. of Homeland Security and by a Nuclear Non-Proliferation International Safeguards Graduate Fellowship (PAC) from the US Dept. of Energy.

  6. Variable tolerance to copper in two species from San Francisco Bay

    USGS Publications Warehouse

    Luoma, S.N.; Cain, D.J.; Ho, K.; Hutchinson, A.

    1983-01-01

    In static toxicity experiments, tolerance to soluble Cu of the bivalve, Macoma balthica, and the copepod, Acartia clausi, varied substantially among populations sampled within San Francisco Bay. Intraspecific tolerance differed ten-fold or more for both species over relatively small distances, suggesting geographical isolation of populations is not a prerequisite for the development of intraspecific differences in tolerance by aquatic organisms.In static toxicity experiments, tolerance to soluble Cu of the bivalve, Macoma balthica, and the copepod, Acartia clausi, varied substantially among populations sampled within San Francisco Bay. Intraspecific tolerance differed ten-fold or more for both species over relatively small distances, suggesting geographical isolation of populations is not a prerequisite for the development of intraspecific differences in tolerance by aquatic organisms. Refs.

  7. Francisco Guerra (1916-2011), medical historian for the world and Puerto Rico.

    PubMed

    Rigau-Pérez, José G

    2012-06-01

    This brief celebration of the work of Francisco Guerra (1916-2011) highlights his role as mentor for an international community, his study of local events in the context of global developments, and his contributions to the understanding of the medical history of Puerto Rico. A selective review of Francisco Guerra's methods and publications shows that his principal works are characterized by their vast scope and exhaustive coverage of ancient and modern published sources, coupled with clarity and conciseness of exposition. At least eight of his books (presented here) provide important information on events and personalities in Puerto Rico up to about 1940. Guerra, through his clinical experience, profound scholarship, and personal contacts, recovered the local medical developments of peripheral areas and incorporated them to a global context.

  8. System designed for issuing landslide alerts in the San Francisco Bay area

    USGS Publications Warehouse

    Finley, D.

    1987-01-01

    A system for forecasting landslides during major storms has been developed for the San Francisco Bay area by the U.S Geological Survey and was successfully tested during heavy storms in the bay area during February 1986. Based on the forecasts provided by the USGS, the National Weather Service (NWS) included landslide warnings in its regular weather forecasts or in special weather statements transmitted to local radio and television stations and other news media. USGS scientists said the landslide forecasting and warning system for the San Francisco Bay area can be used as a prototype in developing similar systems for other parts of the Nation susceptible to landsliding. Studies show damage from landslides in the United States averages an estimated $1.5 billion per year. 

  9. Predicting the vertical structure of tidal current and salinity in San Francisco Bay, California

    USGS Publications Warehouse

    Ford, Michael; Wang, Jia; Cheng, Ralph T.

    1990-01-01

    A two-dimensional laterally averaged numerical estuarine model is developed to study the vertical variations of tidal hydrodynamic properties in the central/north part of San Francisco Bay, California. Tidal stage data, current meter measurements, and conductivity, temperature, and depth profiling data in San Francisco Bay are used for comparison with model predictions. An extensive review of the literature is conducted to assess the success and failure of previous similar investigations and to establish a strategy for development of the present model. A σ plane transformation is used in the vertical dimension to alleviate problems associated with fixed grid model applications in the bay, where the tidal range can be as much as 20–25% of the total water depth. Model predictions of tidal stage and velocity compare favorably with the available field data, and prototype salinity stratification is qualitatively reproduced. Conclusions from this study as well as future model applications and research needs are discussed.

  10. A 2000 yr record of Sacramento San Joaquin River inflow to San Francisco Bay estuary, California

    SciTech Connect

    Ingram, B.L.; Ingle, J.C.; Conrad, M.E.

    1995-10-01

    Oxygen and carbon isotopic measurements of fossil bivalves (Macoma nasuta) contained in estuarine sediment are used to reconstruct a late Holocene record of salinity and stream flow in San Francisco Bay. Discharge into the bay is a particularly good indicator of paleoclimate in California because the bay's influent streams drain 40 percent of the state, The isotopic record suggests that between about 1670 and 1900 calendar years (yr cal) B.P. inflow to the bay was substantially greater than the estimated prediversion inflow of 1100 m(3)/s, An unconformity representing a 900 yr hiatus is present in the core between 1670 and 750 yr cal B.P., possibly caused by a major hydrological event. Over the past 750 yr, stream flow to San Francisco Bay has varied with a period of 200 yr; alternate wet and dry (drought) intervals typically have lasted 40 to 160 yr.

  11. 2000 yr record of Sacramento-San Joaquin river inflow to San Francisco Bay estuary, California

    SciTech Connect

    Ingram, B.L.; Ingle, J.C.; Conrad, M.E.

    1996-04-01

    Oxygen and carbon isotopic measurements of fossil bivalves (Macoma nasuta) contained in estuarine sediment are used to reconstruct a late Holocene record of salinity and stream flow in San Francisco Bay. Discharge into the bay is a particularly good indicator of paleoclimate in California because the bay`s influent streams drain 40% of the state. The isotopic record suggests that between about 1670 and 1900 calendar years (yr cal) B.P. inflow to the bay was substantially greater than the estimated prediversion inflow of 1100 M{sup 3}/s. An unconformity representing a 900 yr hiatus is present in the core between 1670 and 750 yr cal B.P., possibly caused by a major hydrological event. Over the past 750 yr, stream flow to San Francisco Bay has varied with a period of 200 yr; alternate wet and dry (drought) intervals typically have lasted 40 to 160 yr. 27 refs., 7 figs.

  12. Understanding sociocultural and psychological factors affecting transgender people of color in San Francisco.

    PubMed

    Bith-Melander, Pollie; Sheoran, Bhupendra; Sheth, Lina; Bermudez, Carlos; Drone, Jennifer; Wood, Woo; Schroeder, Kurt

    2010-01-01

    This ethnographic qualitative study explored the needs of transgender people of color, including biological transitioning issues, gender and group membership identity formation, HIV, and other health issues. The sample consisted of transgender youth and adults of color in San Francisco (N = 43). Data were collected from in-depth interviews with 20 youth and adults and focus groups with 23 individuals. The study focused on perspectives of racial and ethnic minorities from Asian/Pacific Islander, African American, and Latino backgrounds. The medical decision-making perspective was used to gain a deeper understanding of sociocultural and psychological factors affecting transgender individuals of color in San Francisco. The major themes that emerged were gender identity, group membership, transitioning and related issues, sex work, alcohol and drug use, mental health and health care, sense of community, HIV, resources, and other support. Key clinical considerations that health providers can use to improve care of transgender individuals of color are included.

  13. ASTER's First Views of San Francisco River, Brazil - Visible/near Infrared (VNIR) Image (monochrome)

    NASA Technical Reports Server (NTRS)

    2000-01-01

    This image of the San Francisco River channel, and its surrounding flood zone, in Brazil was acquired by band 3N of ASTER's Visible/Near Infrared sensor. The surrounding area along the river channel in light gray to white could be covered by dense tropical rain forests. The water surface of the San Francisco River shows rather gray color as compared to small lakes and tributaries, which could indicate that the river water is contaminated by suspended material.

    The size of image: 20 km x 20 km approx., ground resolution 15 m x 15 m approximately

    The ASTER instrument was built in Japan for the Ministry of International Trade and Industry. A joint United States/Japan Science Team is responsible for instrument design, calibration, and data validation. ASTER is flying on the Terra satellite, which is managed by NASA's Goddard Space Flight Center, Greenbelt, MD.

  14. Food insecurity among homeless and marginally housed individuals living with HIV/AIDS in San Francisco.

    PubMed

    Weiser, Sheri D; Bangsberg, David R; Kegeles, Susan; Ragland, Kathleen; Kushel, Margot B; Frongillo, Edward A

    2009-10-01

    Food insecurity is a risk factor for both HIV transmission and worse HIV clinical outcomes. We examined the prevalence of and factors associated with food insecurity among homeless and marginally housed HIV-infected individuals in San Francisco recruited from the Research on Access to Care in the Homeless Cohort. We used multiple logistic regression to determine socio-demographic and behavioral factors associated with food insecurity, which was measured using the Household Food Insecurity Access Scale. Among 250 participants, over half (53.6%) were food insecure. Higher odds of food insecurity was associated with being white, low CD4 counts, recent crack use, lack of health insurance, and worse physical and mental health. Food insecurity is highly prevalent among HIV-infected marginally housed individuals in San Francisco, and is associated with poor physical and mental health and poor social functioning. Screening for and addressing food insecurity should be a critical component of HIV prevention and treatment programs.

  15. Earthquakes and faults in the San Francisco Bay area (1970-2003)

    USGS Publications Warehouse

    Sleeter, Benjamin M.; Calzia, James P.; Walter, Stephen R.; Wong, Florence L.; Saucedo, George J.

    2004-01-01

    The map depicts both active and inactive faults and earthquakes magnitude 1.5 to 7.0 in the greater San Francisco Bay area. Twenty-two earthquakes magnitude 5.0 and greater are indicated on the map and listed chronologically in an accompanying table. The data are compiled from records from 1970-2003. The bathymetry was generated from a digital version of NOAA maps and hydrogeographic data for San Francisco Bay. Elevation data are from the USGS National Elevation Database. Landsat satellite image is from seven Landsat 7 Enhanced Thematic Mapper Plus scenes. Fault data are reproduced with permission from the California Geological Survey. The earthquake data are from the Northern California Earthquake Catalog.

  16. Chemistry and microbiology of a sewage spill in South San Francisco Bay.

    USGS Publications Warehouse

    Cloern, J.E.; Oremland, R.S.

    1983-01-01

    During September 1979, the breakdown of a waste treatment plant resulted in discharge of 1.5 X 107 m3 of primary- treated sewage into a tributary of South San Francisco Bay. Chemical and microbial changes occurred within the tributary as decomposition and nitrification depleted dissolved oxygen. Associated with anoxia were relatively high concentrations of particulate organic carbon, dissolved CO2, CH4, C2H4, NH4+, and fecal bacteria, and low phytoplankton biomass and photosynthetic oxygen production. South San Francisco Bay experienced only small changes in water quality, presumably because of its large volume and the assimilation of wastes that occurred within the tributary. Water quality improved rapidly in the tributary once normal tertiary treatment resumed. -Authors

  17. Predicting tidal currents in San Francisco Bay using a spectral model

    USGS Publications Warehouse

    Burau, Jon R.; Cheng, Ralph T.

    1988-01-01

    This paper describes the formulation of a spectral (or frequency based) model which solves the linearized shallow water equations. To account for highly variable basin bathymetry, spectral solutions are obtained using the finite element method which allows the strategic placement of the computation points in the specific areas of interest or in areas where the gradients of the dependent variables are expected to be large. Model results are compared with data using simple statistics to judge overall model performance in the San Francisco Bay estuary. Once the model is calibrated and verified, prediction of the tides and tidal currents in San Francisco Bay is accomplished by applying astronomical tides (harmonic constants deduced from field data) at the prediction time along the model boundaries.

  18. Harnessing urban form to reduce driving and pollution: New studies in Chicago, LA and San Francisco

    SciTech Connect

    Holtzclaw, J.W.

    1997-12-31

    The impacts of local residential density, shopping, proximity, pedestrian friendliness and transit service on auto ownership and vehicle miles traveled are being measured in the whole Chicago, Los Angeles and San Francisco regions. The measure of vehicle miles traveled uses household travel surveys and smog-check odometer readings. the preliminary results, using the household travel surveys, show substantial reductions in auto ownership and vehicle miles traveled at higher densities, closer proximities, higher local shopping, more pedestrian- and bicycle-friendly neighborhoods and better public transit service. An analysis by the Metropolitan Transportation Commission shows how to reduce air pollution in the San Francisco Bay Area by increasing residential and employment densities, improving transit service and applying parking cash-out. Specific measures to reap the benefits of these results are presented.

  19. Genotoxic effects of water from São Francisco River, Brazil, in Astyanax paranae.

    PubMed

    Ribeiro, Diego Luis; Barcelos, Gustavo Rafael Mazzaron; d'Arce, Luciana Paula Grégio

    2014-09-01

    Aquatic monitoring is an important tool for identifying potential compounds in rivers that may damage the environment. Here, we evaluate the potential genotoxic effects of water samples from São Francisco River (Brazil) using the micronuclei (MN) assay in resident species, Astyanax paranae. Four seasonal collections occurred between the years 2009 and 2010, at three locations between two nearby cities in the region. It was clearly observed an increase of MN frequency in fish caught in the river. This result is most likely due to the sewage contamination from the treatment plant, the waste pesticides from crops and the lack of riparian vegetation along the river, especially during the winter when there was a significant increase in the frequencies of MN. These results indicate that compounds in waters from São Francisco River may have genotoxic effects and consequently, cause damage to the environment as well as to human health.

  20. Bartonella quintana in body lice and head lice from homeless persons, San Francisco, California, USA.

    PubMed

    Bonilla, Denise L; Kabeya, Hidenori; Henn, Jennifer; Kramer, Vicki L; Kosoy, Michael Y

    2009-06-01

    Bartonella quintana is a bacterium that causes trench fever in humans. Past reports have shown Bartonella spp. infections in homeless populations in San Francisco, California, USA. The California Department of Public Health in collaboration with San Francisco Project Homeless Connect initiated a program in 2007 to collect lice from the homeless to test for B. quintana and to educate the homeless and their caregivers on prevention and control of louse-borne disease. During 2007-2008, 33.3% of body lice-infested persons and 25% of head lice-infested persons had lice pools infected with B. quintana strain Fuller. Further work is needed to examine how homeless persons acquire lice and determine the risk for illness to persons infested with B. quintana-infected lice.

  1. Hydraulic modeling and scour analysis for the San Francisco - Oakland Bay Bridge

    USGS Publications Warehouse

    Shelden, J.G.; Smith, E.D.; Sheppard, D.M.; Odeh, M.

    2004-01-01

    A study was conducted to determine potential maximum scour depths for the foundations of the replacement east span of the San Francisco-Oakland Bay Bridge, as part of the ongoing structural design. This effort presented unique challenges as strong tidal currents, large depths, and cohesive bottom sediments characterize the site. The authors met these challenges with a multi-faceted approach to the problem. First, design current velocities were determined using a two-dimensional hydrodynamic model of San Francisco Bay in conjunction with ADCP hydrographic surveys. Analytical scour calculations were performed and live-bed flume tests of the proposed foundations were also conducted. Finally, two separate methodologies were used to interpret the physical model tests in order to calculate potential scour depths around the foundations. Copyright ASCE 2004.

  2. Idealism and romantic patriotism for science - an interview with José Francisco David-Ferreira.

    PubMed

    David-Ferreira, José Francisco

    2009-01-01

    Jose Francisco David-Ferreira is one of the most influential Professors of Cell and Developmental Biology in Portugal. David-Ferreira pioneered the use of electron microscopy in cell biology and experimental embryology. He also paved the way for successive generations of biologists who cross-fertilized the national scientific community. As we discuss briefly below, David-Ferreira is above all a Pedagogue and an Institution builder.

  3. Crustal structure of the coastal and marine San Francisco Bay region, California

    USGS Publications Warehouse

    Parsons, Tom

    2002-01-01

    In summary, these studies were carried out in an environment where background information on faults in the San Francisco Bay region was sought. Much of the structural information presented here comes from experiments of a style unlikely to be conducted by the USGS in the near future. Together, the chapters in this volume provide a structural framework for a major part of a complex strike-slip fault system.

  4. Particulate Matter Concentrations in San Francisco Bay Area Rapid Transit (BART) Train Stations

    NASA Astrophysics Data System (ADS)

    Newsome, L.; Macias, S.; Romero, N.; Lockett, N.; Polar, J.; Madrigal, C.; Lopez, F.; Sanchez, R.; Webster, D.; Torio, M.; Rios, V.; Marks-Block, T.; Toli, F.

    2012-12-01

    As part of a general effort to assess air quality in different regions of the San Francisco Bay Area, we collected Particulate Matter (PM) data within passenger train cars along multiple commuter train lines simultaneously during the summer and fall of 2012. We visited numerous Bay Area Rapid Transit (BART) system stations, including those along the Fremont, Pittsburg and SF/Daly City lines. In conducting this study we used a Dustrak 8530 aerosol sensor equipped with a Global Positioning System (GPS) receiver to measure PM size 2.5 μm concentrations every second. Of all the BART stations we visited, average PM concentration levels at the Embarcadero station in San Francisco were the highest during multiple visits, with a value of 104.95 μg/m3. We also noted that high levels of PM 2.5 were released when the cloth seats on the trains were struck, which resulted in significant, temporary increases of hazardous PM levels of up to 3000 μg/m3! Embarcadero station's high PM concentration correlates to past research in other underground train stations throughout the world, where PM produced through the abrasive interaction of train wheels and tracks or brake pads becomes trapped. Compared to levels measured at outdoor stations (average of 8.52μg/m3) and other underground stations, levels detected at the Embarcadero station are particularly alarming. We believe this is due to the fact that this station is located at one end of a long, underground and underwater transbay tunnel that connects the East San Francisco Bay area to San Francisco to the west. To reduce PM exposure risk to BART employees and passengers, we suggest increasing and/or installing filtration and ventilation systems, which should substantially reduce PM concentrations at Embarcadero station.

  5. Observations of Fallout from the Fukushima Reactor Accident in San Francisco Bay Area Rainwater

    PubMed Central

    Norman, Eric B.; Angell, Christopher T.; Chodash, Perry A.

    2011-01-01

    We have observed fallout from the recent Fukushima Dai-ichi reactor accident in samples of rainwater collected in the San Francisco Bay area. Gamma ray spectra measured from these samples show clear evidence of fission products – 131,132I, 132Te, and 134,137Cs. The activity levels we have measured for these isotopes are very low and pose no health risk to the public. PMID:21957447

  6. Global Health Diplomacy, "San Francisco Values," and HIV/AIDS: From the Local to the Global.

    PubMed

    Kevany, Sebastian

    2015-01-01

    San Francisco has a distinguished history as a cosmopolitan, progressive, and international city, including extensive associations with global health. These circumstances have contributed to new, interdisciplinary scholarship in the field of global health diplomacy (GHD). In the present review, we describe the evolution and history of GHD at the practical and theoretical levels within the San Francisco medical community, trace related associations between the local and the global, and propose a range of potential opportunities for further development of this dynamic field. We provide a historical overview of the development of the "San Francisco Model" of collaborative, community-owned HIV/AIDS treatment and care programs as pioneered under the "Ward 86" paradigm of the 1980s. We traced the expansion and evolution of this model to the national level under the Ryan White Care Act, and internationally via the President's Emergency Plan for AIDS Relief. In parallel, we describe the evolution of global health diplomacy practices, from the local to the global, including the integration of GHD principles into intervention design to ensure social, political, and cultural acceptability and sensitivity. Global health programs, as informed by lessons learned from the San Francisco Model, are increasingly aligned with diplomatic principles and practices. This awareness has aided implementation, allowed policymakers to pursue related and progressive social and humanitarian issues in conjunction with medical responses, and elevated global health to the realm of "high politics." In the 21st century, the integration between diplomatic, medical, and global health practices will continue under "smart global health" and GHD paradigms. These approaches will enhance intervention cost-effectiveness by addressing and optimizing, in tandem with each other, a wide range of (health and non-health) foreign policy, diplomatic, security, and economic priorities in a synergistic manner

  7. Putting down roots in earthquake country: Your handbook for the San Francisco Bay region

    USGS Publications Warehouse

    ,

    2005-01-01

    This handbook provides information about the threat posed by earthquakes in the San Francisco Bay region and explains how you can prepare for, survive, and recover from these inevitable events. If you live or work in the region, you need to know why you should be concerned with earthquakes, what you can expect during and after a quake, and what you need to do beforehand to be safe and reduce damage.

  8. Surface displacements in the 1906 san francisco and 1989 loma prieta earthquakes.

    PubMed

    Segall, P; Lisowski, M

    1990-11-30

    The horizontal displacements accompanying the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake are computed from geodetic survey measurements. The 1906 earthquake displacement field is entirely consistent with right-lateral strike slip on the San Andreas fault. In contrast, the 1989 Loma Prieta earthquake exhibited subequal components of strike slip and reverse faulting. This result, together with other seismic and geologic data, may indicate that the two earthquakes occurred on two different fault planes.

  9. How humans and nature have shaped the San Francisco Estuary since the Gold Rush

    USGS Publications Warehouse

    Jaffe, B.E.

    2009-01-01

    The San Francisco Estuary has undergone dramatic changes since the Gold Rush, as both natural forces and human activities have added and removed massive quantities of sediment, primarily sand and mud. A long-term perspective of sediment movement and patterns of sediment deposition and erosion is vital for effective management of wetlands, sediment contamination, dredging, mining, and other phenomena. Quantitative analysis of historical depth surveys and changes between surveys provides this perspective.

  10. Characterization of the Vertical Structure of Tidal Currents in the Golden Gate (San Francisco) Inlet

    DTIC Science & Technology

    2012-12-01

    part is a partially mixed estuary dominated by seasonally varying river inflow, and the South Bay is a tidally oscillating lagoon -type estuary...OF THE VERTICAL STRUCTURE OF TIDAL CURRENTS IN THE GOLDEN GATE (SAN FRANCISCO) INLET by Muhammad Khalid December 2012 Thesis Advisor...December 2012 3. REPORT TYPE AND DATES COVERED Master’s Thesis 4. TITLE AND SUBTITLE CHARACTERIZATION OF THE VERTICAL STRUCTURE OF TIDAL

  11. Water level measurements in 52 shallow boreholes in the San Francisco Bay region

    USGS Publications Warehouse

    Roth, Edward F.

    1978-01-01

    Water-level measurements have been read in 52 cased boreholes in the San Francisco bay region. These measurements are compared to water-table depths determined by P-wave velocity. A velocity in excess of 1200 m/s is taken as the depth of the upper surface of the water table. This method works best in saturated alluvium, and fails in dry rock because of P-wave velocities greater than 1200 m/s.

  12. Coastal monitoring of the May 2005 dredge disposal offshore of Ocean Beach, San Francisco, Calif.

    USGS Publications Warehouse

    Barnard, Patrick L.; Hanes, Daniel M.

    2006-01-01

    Ocean Beach, California, contains an erosion hot spot in the shadow of the San Francisco ebb tidal delta south of Sloat Boulevard that threatens valuable public infrastructure as well as the safe recreational use of the beach. In an effort to reduce the erosion at this location and avoid hazardous navigation conditions at the current disposal site (SF-8), a new plan for the management of sediment dredged annually from the main shipping channel at the mouth of Francisco Bay was implemented in May 2005 by the United States Army Corps of Engineers, San Francisco District (COE). The objective for COE was to perform a test dredge disposal of ~230,000 m3 (300,000 yd3) of sand just offshore of the erosion hot spot, in depths between approximately 9 and 14 m. This disposal site was chosen because it is in a location where the strong tidal currents associated with the mouth of San Francisco Bay and waves can potentially feed sediment toward the littoral zone in the reach of the beach that is experiencing critical erosion. The onshore migration of sediment from the target disposal location might feed the primary longshore bar or the nearshore zone, and provide a buffer to erosion that peaks during winter months when large waves impact the region. The U.S. Geological Survey (USGS), in collaboration with the Sea Floor Mapping Lab (SFML) of California State University, Monterey Bay, monitored the initial bathymetric evolution of the test dredge disposal site and the adjacent coastal region from May 2005 to November 2005. This paper reports on this monitoring effort and assesses the short-term coastal response.

  13. Groundwater quality in the North San Francisco Bay groundwater basins, California

    USGS Publications Warehouse

    Kulongoski, Justin T.; Belitz, Kenneth

    2010-01-01

    Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. The basins north of San Francisco constitute one of the study units being evaluated.

  14. Municipal and industrial wastewater loading in the San Francisco Bay, California, 1970

    USGS Publications Warehouse

    Hines, W.G.; Palmer, R.H.

    1971-01-01

    The purpose of this release is to describe the approximate volumes and significant pollutional loading attributable to municipal and industrial wastewater discharged into the San Francisco Bay. The six receiving-water regions (fig.1) are the same as those used previously by Pearson, Storrs, and Selleck (1969) in describing results of the comprehensive wastewater-monitoring program conducted by the University of California, Berkeley, during the period 1960-64.

  15. External impacts of an intraurban air transportation system in the San Francisco Bay area

    NASA Technical Reports Server (NTRS)

    Lu, J. Y.; Gebman, J. R.; Kirkwood, T. F.; Mcclure, P. T.; Stucker, J. P.

    1972-01-01

    The effects are studied of an intraurban V/STOL commuter system on the economic, social, and physical environment of the San Francisco Bay Area. The Bay Area was chosen mainly for a case study; the real intent of the analysis is to develop methods by which the effects of such a system could be evaluated for any community. Aspects of the community life affected include: income and employment, benefits and costs, noise, air pollution, and road congestion.

  16. Look before you build; geologic studies for safer land development in the San Francisco Bay area

    USGS Publications Warehouse

    Blair-Tyler, Martha

    1995-01-01

    This Circular provides a general description of the types of geologic hazards that exist throughout the United States. In nontechnical language this book describes how geologic information can be incorporated in the land-use development process and contains useful discussion of several examples from the San Francisco Bay area and elsewhere in the United States of how geologic information is already being used in the development process by some cities and counties.

  17. Microbial diversity in restored wetlands of the San Francisco Bay Delta

    NASA Astrophysics Data System (ADS)

    Theroux, S.; Hartman, W.; Tringe, S. G.; He, S.

    2013-12-01

    Wetland ecosystems may serve as either a source or a sink for atmospheric carbon and greenhouse gases. This delicate carbon balance is influenced by the activity of below-ground microbial communities that return carbon dioxide and methane to the atmosphere. Wetland restoration efforts in the San Francisco Bay-Delta region may help to reverse land subsidence and possibly increase carbon storage in soils. However, the effects of wetland restoration on microbial communities, which mediate soil metabolic activity and carbon cycling, are poorly studied. In an effort to better understand the underlying factors which shape the balance of carbon flux in wetland soils, we targeted the microbial communities in a suite of restored and historic wetlands in the San Francisco Bay-Delta region. Using DNA and RNA sequencing, coupled with greenhouse gas monitoring, we profiled the diversity and metabolic potential of the wetland soil microbial communities along biogeochemical and wetland age gradients. Our results show relationships among geochemical gradients, availability of electron acceptors, and microbial community composition. Our study provides the first genomic glimpse into microbial populations in natural and restored wetlands of the San Francisco Bay-Delta region and provides a valuable benchmark for future studies.

  18. Copper, iron and the organic ligands that bind them - updates from San Francisco Bay and beyond

    NASA Astrophysics Data System (ADS)

    Buck, K. N.; Bundy, R.; Biller, D.; Bruland, K. W.; Barbeau, K.

    2015-12-01

    Building on more than 30 years of measurements in San Francisco Bay by Russ Flegal and others, the concentrations of dissolved manganese, iron, cobalt, nickel, copper, zinc, cadmium and lead were determined from a suite of water quality monitoring program stations in North, Central and South Bay using inductively coupled plasma- mass spectrometry following preconcentration on a Nobias-chelate PA1 resin. Given the importance of organic ligands in governing iron solubility and copper bioavailability in natural waters, the organic complexation of dissolved iron and copper in these samples was determined from multiple analytical windows applied to competitive ligand exchange- adsorptive cathodic stripping voltammetry. This study constitutes the first dataset of iron speciation in San Francisco Bay and expands upon prior work evaluating the potential for copper toxicity in this urbanized estuary. Recent advances in voltammetric techniques emerging from a Scientific Committee on Oceanic Research (SCOR) working group on metal-binding ligands in the marine environment, and insights gained from high-resolution ligand measurements from the U.S. GEOTRACES program, highlight how metal-binding ligands in San Francisco Bay compare with those of the coastal and open ocean.

  19. Specific conductance and water temperature data for San Francisco Bay, California, for Water Year 2003

    USGS Publications Warehouse

    Buchanan, P.A.

    2004-01-01

    This article presents time-series graphs of specific-conductance and water-temperature data collected in San Francisco Bay during water year 2003 (October 1, 2002, through September 30, 2003). Specific-conductance and water-temperature data were recorded at 15-minute intervals at the following US Geological Survey (USGS) locations (Figure 1): • Suisun Bay at Benicia Bridge, near Benicia, CA. (BEN) (site # 11455780) • Carquinez Strait at Carquinez Bridge, near Crockett, CA. (CARQ) (site # 11455820) • Napa River at Mare Island Causeway, near Vallejo, CA. (NAP) (site # 11458370) • San Pablo Strait at Point San Pablo, CA. (PSP) (site # 11181360) • San Pablo Bay at Petaluma River Channel Marker 9, CA. (SPB) (site # 380519122262901) • San Francisco Bay at Presidio Military Reservation, CA. (PRES) (site # 11162690) • San Francisco Bay at San Mateo Bridge, near Foster City, CA. (SMB) (site # 11162765) Suspended-sediment-concentration data also were collected at most of these sites during water year 2003. Specific-conductance and water-temperature data from PSP, PRES, and SMB were recorded by the CA Department of Water Resources (DWR) before 1988, by the USGS National Research Program from 1988 to 1989, and by the USGS-DWR cooperative program since 1990. BEN, CARQ, NAP, and SPB were established in 1998 by USGS. The monitoring station at PRES was discontinued on November 12, 2002, due to shoaling at the site.

  20. Sewers and scapegoats: spatial metaphors of smallpox in nineteenth century San Francisco.

    PubMed

    Craddock, S

    1995-10-01

    Medical geography is slowly including more social and cultural theory in its analysis of health issues. Yet there is still room for theoretical growth in the discipline, in areas such as historical inquiry, metaphoric landscapes of disease, and the role of disease and its interpretations in the production of place. With the example of four smallpox epidemics in nineteenth century San Francisco, application of these concepts is illustrated. Each successive epidemic in San Francisco brought stronger association of the disease with Chinatown, until an almost complete metonymy of place and disease had occurred by the last decades of the century. The articulation of biased medical theory onto a landscape of xenophobia engendered this metaphorical transformation of Chinatown into a pustule of contagion threatening to infect the rest of the urban body. A less metaphoric mapping of smallpox focused on the sewer. According to 19th-century miasmatic theories of epidemiology, sewers were the most dangerous urban topographical feature. In an increasingly class-stratified city, they undercut attempts of the upper classes to escape disease by carrying smallpox-causing miasmas across class and ethnic boundaries. A reinvigorated sanitation movement was the result. Both reactions to smallpox epidemics had significant influence in shaping San Francisco's landscape, real and symbolic.